Re: [Flexradio] Manual Notch
It is pretty easy to implement once we have the IIR design stuff included. It is one of those things that just keeps getting shoved to the back of the pile. The IIR design stuff is non-trivial to incorporate but the actual implementation of the filter GIVEN the design is easy. Aim barbs here, Bob On 1/20/2010 11:19 AM, Edwin Marzan wrote: Amen brothers. Probably not easy to implement in software. I only assume this because it seems like an extremely logical feature to add to such a graphical product. Edwin Marzan AB2VW -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. the only people for me are the mad ones, the ones who are mad to live, mad to talk, mad to be saved, desirous of everything at the same time, the ones who never yawn or say a commonplace thing, but burn, burn, burn like fabulous yellow roman candles Kerouac Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
Re: [Flexradio] Manual Notch
Patience not required, only civility. I agree with the noisiest critic that this should have been done ages ago. Bob On 1/20/2010 4:42 PM, Edwin Marzan wrote: The poor knob turners can only dream of adding this capability to their radios. With Flex it will become a reality. Be patient, my son! :-) Edwin Marzan AB2VW -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. the only people for me are the mad ones, the ones who are mad to live, mad to talk, mad to be saved, desirous of everything at the same time, the ones who never yawn or say a commonplace thing, but burn, burn, burn like fabulous yellow roman candles Kerouac Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
[Flexradio] What is a VNA? (was Re: FEATURE REQUEST)
One of HP's better documents: What is a VNA? http://bit.ly/7CpN5s -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. the only people for me are the mad ones, the ones who are mad to live, mad to talk, mad to be saved, desirous of everything at the same time, the ones who never yawn or say a commonplace thing, but burn, burn, burn like fabulous yellow roman candles Kerouac Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
[Flexradio] AM/SAM receive problems
I am really having trouble getting a copy of an IQ file upon which I can demonstrate any kind of AGC problem. I want to fix this but if I cannot hear, see, etc. it in action, I am unable to perform a diagnosis. I need before and after IQ files. 1) Find an AM station exhibiting the problem. 2) Recording your AGC settings in an email to me along with the names of the files and a description of what you are seeing. Recording which version of code your are running. Save your database.xml file for me to be transmitted as below. Please use the wave recorder. 3) Make a PRE DETECTION (pre-processing) IQ recording of a station exhibiting the problem. 4) Repeat this with a POST DETECTION of the same station (ideally) so I can hear what you are hearing. 5) Zip all of these files, including the database.xml into a single zip file. Run a google search for a large free file sharing service. http://www.google.com/search?rlz=1C1GGLS_enUS359US359aq=fsourceid=chromeie=UTF-8q=free+large+file+sharing Pick one that is acceptable to you and put the file there if you do not have a personal service we can use. I will download the file, and complete my analysis on the actual signal files and look for the problem and fix it. I do not believe than any AGC problem is unique to AM. I believe that if it REALLY IS an AGC problem, it will exhibit artifacts on other modes, including transmit, if it really is AGC. It might be some inadvertent changes to AM/SAM. I do not believe this. I have had files sent to me by Tim and they exhibit no problems whatsoever so far as I can tell. When I listen to local strong AM stations, all seems well here. I am motivated to find and fix this. But I cannot do it without your aide. HNY! Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. the only people for me are the mad ones, the ones who are mad to live, mad to talk, mad to be saved, desirous of everything at the same time, the ones who never yawn or say a commonplace thing, but burn, burn, burn like fabulous yellow roman candles Kerouac Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
[Flexradio] Linux Journal covers amateur radio
ARRL Website refers to Linux Journal: http://bit.ly/4Xce6q 73's Bob N4HY ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
Re: [Flexradio] A little perplexed...
I will have you know I am DEFINITELY an OF. Bob N4HY Sent from my Verizon Wireless BlackBerry ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
[Flexradio] Fw: Topband: Jerry Sevick W2FMI (SK)
I paid part of my tuition building high power baluns and ununs Jerry designed. His great work is still available from ARRL. RIP Bob Sent from my Verizon Wireless BlackBerry -Original Message- From: K9AY k...@k9ay.com Date: Tue, 1 Dec 2009 08:28:17 To: st...@qrparci.org; cq-cont...@contesting.com; topb...@contesting.com; antennaw...@contesting.com Cc: w...@arraysolutions.com Subject: Topband: Jerry Sevick W2FMI (SK) Fellow hams, Jerry Sevick, W2FMI, one of ham radio's great technical contributors, has passed away. I received word from his family that Jerry died peacefully this past Sunday at the age of 90. I have known Jerry since 1995 while arranging for continued publication of his classic book, Transmission Line Transformers, after the ARRL decided not to do so. I was honored to be his collaborator on the current edition of that book, and the editor of several magazine articles and other manuscripts. Jerry embodied the old-fashioned amateur spirit of innovation by experiment, applying his many years of experience as a Bell Labs researcher to a retirement project analyzing the performance of short vertical antennas. That work led him to the study of transmission line transformers, for which he became well-known in both the ham and professional radio engineering communities. He brought a little-known piece of technology to the forefront, and worried until the end whether enough people understood the principles behind the operation of these devices. An excerpt from his obituary: ...Jerry was a graduate of Wayne State University and a member of their Athletic Hall of Fame. He was drafted by both the Chicago Bears and Detroit Lions, but did not play professional football. He served as a pilot in the US Army Air Corps in WWII. He graduated from Harvard University, with a doctorate in Applied Physics. Jerry taught at Wayne State University and worked as the local weather forecaster at WXYZ TV in Detroit. He worked for Bell Laboratories in Murray Hill, NJ and retired as the Director of Technical Relations. An avid Ham radio operator (W2FMI), Jerry was renowned for his research and publications related to short vertical antennas and transmission line transformers... Rest in Peace, Jerry, Gary Breed K9AY **Please forward to any list or individual you think would like to know of Jerry's passing. ___ 160 meters is a serious band, it should be treated with respect. - TF4M ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
Re: [Flexradio] New Flex QRP Rig
as with all such questions the answer is IT DEPENDS! The flex 1500 will have poorer dynamic range and allow for less panadapter bandwith. flex is obviously using a lower grade codec. It is limiting the 1500 to 48 KHz panadapter bandwidth. The 5000 has world class receiver specs, can be retrofitted with a second full performance RX a VHF/UHF transverter and has an antenna tuner as well as umpteen dozen different ways to hook it to antennas. All of that costs real money and it is worth. If you don't need 100 dB dynamic range then the 3000 is nice but no second reciever and limited to 98 kHz panadapter. If you don't need 90 db dynamic and can live with USB and fewer lotions and lower power (lower drain and lower cooling requirements then 1500 is for you. And I missed about a dozen other differences which are secondary to most but maybe not to you. Call flex. Talk to Greg or matt and figurr what you need. Bob N4HY --Original Message-- From: KFØX - Randy Malick Sender: flexradio-boun...@flex-radio.biz To: 'Reflector Flex-Radio' Subject: [Flexradio] New Flex QRP Rig Sent: Nov 26, 2009 2:34 PM Can anyone tell me (besides power output) what the big differences will be between the lower Flex models and the new QRP rig. I guess what I am saying is would it make sense if I already have a nice linear (which will work fine with 5 watts in) to purchase the QRP rig? It is just so much less money, I must consider that option if it makes sense. You know how much happier an XYL can be with a $500 range price opposed to a $1500 range price showing up on the Visa... particularly this time of year. I would greatly appreciate your input. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to rwmcgw...@gmail.com Sent from my Verizon Wireless BlackBerry ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
Re: [Flexradio] Venting about VAC 4 with SDR 1.18.1 (but I know I am somehow the problem)
US is the wrong sobriquet for this problem. Flex and TC are in the process of checkout and certification of a fixed collection of firewire cards, assets. But here is my BO for the day, no matter how much it stinks: Bob's Opinions (BO) NEVER EVER use a laptop for real time embedded applications like software radio. Just say no irrespective of how much you love the device and its convenience they are simply ill suited to the task. Flex has just spent 3.5 weeks wasting $100/hour of billable time of its most valuable software engineer EMPLOYEE wasting time on a laptop which could not be made to function so they could have a known reliable laptop for shows. Time that should have been spent on software things, including new architecture architecting. ;-) Laptop's are UTTERLY unpredictable hardware. You will know the processor and that is IT. Unless you pay top dollar and get a guaranteed the same laptop, they always take the cheapest motherboard they can get that week. Companies like Dell have a bin for everything when they build the cheap machines, including desktops, and they just grab the part that fits the job and whatever is in the bin goes into the PC. In the case of laptop's, they are ALWAYS trying to shave a buck or two off the cost. Sell a million laptops and that is lots of money. Laptops are about saving power. They are NEVER about high end, how power, low latency computing EVER. The problem you are experiencing is either a firewire driver/firewire firmware/firewire hardware issue and that is just out of the ability of Flex or the developers to control. The software is at the mercy of your firewire vendor. Flex already knows this is its major problem at this time period. If Dudley could ever stop answering the phone long enough (from fixing firewire problems), he has the task of buying a pile of cards and finding what works on what machine with this or that OS. This is for cardbus laptops and PCIe cards for desktops. No one feels your pain more than the developers and official testers. My one comment to you is that it is actually worth the effort. The radio is amazing. Bob N4HY Mark Lunday wrote: Thanks, Tim. I installed the DPCLAT tool. I am seeing consistent 1000 micro-sec latency on the DPCLAT tool. Oh, there are a few drops to 500 microseconds, and a few spikes of 16000 microseconds or greater. I have disabled everything I can think of in the Device manager, without impairing the machine: * Wireless network card (even tried the LAN card) - no change * Tablet pen input * Other USB controllers, except for the one with the mouse and the one with the keyboard * Internal computer sound card * Any other human interface devices not in use I also took a look at the services which are running. I cannot find any which would still affect the machine. Antivirus is off...Vista search indexer is off. I am running Windows Basic for display, not Aero glass for Vista. CPU shows about 11% utilization, 850MB out of 2 GB of memory in use. Interesting test - when I unplug the firewire connection, the latency drops WAY down, to about 50 microseconds...with only a spike of 1000 microseconds every 5 seconds or so. As soon as the firewire cable goes back in, we go back up to 1000 microseconds again. The driver is dated June 2006, that was just before gold code of Vista came out. I checked (RICOH OHCI Compliant IEEE 1394 Host Controller) and the installed version looks like the latest one available: http://www.pcpitstop.com/drivers/download/RICOH~OHCI~Compliant~IEEE~1394~Hos t~Controller.html So we have met the enemy which is causing the latency, and it is US. The firewire connection is causing a latency which is affecting the performance of the firewire connection. How about that! Talk about going in circles... I don't suppose there is anything I can do at this point Mark Lunday WD4ELG wd4...@arrl.net http://wd4elg.net -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
Re: [Flexradio] Speed issue
If that fixes it, don't feel bad Tim M. I designed the original spur reduction strategy. I know it needs to be done because a) we can and b) we should and I STILL get caught with SR off and wondering WTH happened. I bet that fixes it. Bob N4HY Tim Ellison wrote: Make sure Spur Reduction (SR) is turned on. -Tim ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Message delivered to arch...@mail-archive.com
Re: [Flexradio] PowerSDR freeze and AM Broadcast spurii on 40m with Flex-5000?
Congrats and nice work! Happy 4th! Bob N4HY Phillips wrote: Bob, Close out report... I build a Hi-pass filter to the design that Gary Breed used for his K9AY pre-amp front end - the schematic is at: http://www.aytechnologies.com/TechData/FilterPreamp_160-80.pdf I haven't had a chance to run this on a Network Analyzer yet it's the same design I've used in the past with my K9AY loop. I put the filter into the RX1 receive loop and it nails the 40m BCI stone dead - the filter has 50dB attenuation on AM860 (which today is coming in at -15 dBm on the inverted L!). I can't detect the loss on frequencies 1.8 MHz - from looking at the return loss with an antenna analyzer, I'm guessing its 2dB or so - pretty flat to 50 MHz. Of course, the box and connectors cost more than 10x the actual components... not counting my time, still a cheaper solution than buying a commercial version. I suppose there is a good explanation as to why the FLEX 5000 needs this additional filter OUTBOARD... a small annoyance that hasn't detracted from the appreciation of a very fine piece of technology. Perhaps at some point FLEX can incorporate this on the switching matrix where the cost of the additional components would be $1. So - case closed for me on the BCI. 73's Stu N6TTO -Original Message- From: Bob McGwier [mailto:rwmcgw...@gmail.com] Sent: Thursday, July 02, 2009 6:17 PM To: Stu Phillips Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] PowerSDR freeze and AM Broadcast spurii on 40m with Flex-5000? Stu: WOW, those are some signals. Yes, you will need the BCI filter. The front end is being hit pretty hard. And yes, you can put it into the loop and it will work perfectly. You have entirely too much gain in the radio for 160m-40m anyway so there will be no degradation. Try the buffer settings in the driver control panel to improve your sensitivity to stalls in your computer. Good luck! Bob N4HY ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Performance differences, Pretty Betty versus 1.8.1
Mark: We are putting together another reflector for the discussion of the test code and moving off this reflector which will be limited to discussion of the radio hardware and the official releases and use of the radio with same. In the Flex EDGE reflector, experimenters, people with interest in working with code that may very well be broken, those with lots of ideas or pent up energy!! will be welcome. We find that doing everything in one place has significant drawbacks. Gerald has promised to announce the start of this next week. In the knowledge base, available on the flex-radio.com web site, you will see a discussion of branches, tags, and trunks. The search engine works. For now, I will limit my answer to your specific question. There is one official beta site, the svn trunk, and it is limited to bug fixes, and widespread user testing before official releases are put on the web site. There is one official alpha site (the daily build) that is branches/test. Pretty Betty is pre-alpha. Good luck, Bob N4HY Mark Lunday wrote: I saw a few threads about PB being more resource intensive. I guess the only way to find out is to try it on my system. Is it CPU draw or greater traffic over the Firewire? Also, I downloaded 1.19.1 beta (Pretty Betty). I found bug tracker and feature request list, but I am confused about the different SVN numbers associated with builds. Is there a specific place where daily builds are provided for download and test? SVN Besides being beta code (although it sure appears pretty solid, based upon comments), are there any major gotcha items that have been discovered? (COM port issues, etc?) Mark Lunday WD4ELG ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] PowerSDR freeze and AM Broadcast spurii on 40m with Flex-5000?
Stu: WOW, those are some signals. Yes, you will need the BCI filter. The front end is being hit pretty hard. And yes, you can put it into the loop and it will work perfectly. You have entirely too much gain in the radio for 160m-40m anyway so there will be no degradation. Try the buffer settings in the driver control panel to improve your sensitivity to stalls in your computer. Good luck! Bob N4HY Stu Phillips wrote: Bob, Thanks for the second pair of eyes on the fault matrix for troubleshooting! My station is remote (about 0.25 miles from the house) controlled via Ethernet and audio via a phone patch on the PBX... took a few to walk down and swap everything around. Freeze - I've seen the problem on both normal and safe mode 1 so switched to safe mode 2 and see what happens. BCI - both receivers behave identically - I swapped the K9AY to RX1 - no spurii - then verified that RX2 behaves the same as RX1 when fed directly with the same antennas. So, I think that eliminated the switching matrix and shows both RX behave the same way. Just FYI, the stations that generate the spurii are hot - all better than -30dBm on the inverted L - AM860 is -25 dBm. Stu N6TTO -Original Message- From: Bob McGwier [mailto:rwmcgw...@gmail.com] Sent: Thursday, July 02, 2009 5:45 PM To: Stu Phillips Subject: Re: [Flexradio] PowerSDR freeze and AM Broadcast spurii on 40m with Flex-5000? Stu: Open the driver (in the Flex Radio folder) and if it is set to Normal in the upper right, set to safe mode 1. If it is safe mode 1, increase it to 2, etc. We are FINALLY getting control of these settings from the manufacturer of the firewire device in the radio and will soon be able to control much of that from inside PowerSDR, as well as have the driver notify us of a stall so it can be automatically restarted after adjustment. On the BCI issues others will have to comment, I don't experience this problem at my QTH in NJ where I have lots of strong AM stations nearby in NYC and Philly and NJ. I would suggest that you swap the high/large antennas to the RX2 input. If you do not see them on RX2 this is indicative of nonlinearity in the path of RX1 that is not present on RX2. This has happened to a couple of people (one?) when the relay(s) in the path for RX1 had a fault and they were rectifying. Try swapping RX2 to the big antennas. If you do not see the signals, it is time to call the factory. Bob N4HY Stu Phillips wrote: I took delivery of my Flex 5000 a couple of days ago - everything is working fine except for... - Periodic hangs where PowerSDR freezes and the audio output stops. Pressing Stop then start on PowerSDR gets everything going again. I've run the latency checker and the max its seen was 900us - this on a Duo Quad Core at 2.33 GHZ, Vista X64. The machine is dedicated to the radio. I'm still trouble shooting this one following the suggestions in the KB (disabling virus checker etc.). The system runs fine for hours and then hangs - odd. Typical CPU utilization is 15%. - I have a set of spurii on 40m from local broadcast stations on the AM band. For example, AM860 is perfectly decodable on 7.0039, AM910 at 7.0539, AM1010 at 7.1539... the frequency spacing on the AM band is reflected on the spurii. This goes above and below the 40 band. I have dual RX in the Flex - RX2 is fed via its RX2 input from my home built K9AY loop which has a very effective hi pass filter with an almost brick wall response at 1.7 MHz.When using RX2 input from the K9AY there are no spurii on RX2 - using RX1 is fed from an R5 vertical, 160m inverted L, G5RV and a 30m vertical dipole. Checking the two receivers via the antenna selection panel shows the following. RX1- Spurii on Inverted L (strongest), Vertical Dipole and G5RV - none on the R5 RX2- Spurii same as RX1 when fed via RX1 tap (not a surprise), none on the R5 and NONE on the K9AY Since some of the antennae are clear, it pretty much eliminates the BCI getting in via other cables (audio, 10 MHz GPSDO reference), etc. Have others seen this? I saw some reference on the mailer archive of this being a side effect of the single conversion of the FLEX so I suspect this isn't new news. I'm thinking of a BCI filter (same design as in my K9AY) in the RX1 receive loop - any suggestions/pointers to either of these issues gratefully received! Thanks! Stu N6TTO ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Automatic Gain Control Threshold AGC-T versus reality
This one does conform and should function like legacy, out of touch, radios. Since this radio is calibrated to a 50 Ohm load with the internal generator producing a known voltage, AGC-T is calculated to dBm or as close to it as we could get. Bob N4HY Tim Ellison wrote: Read this article. It should clear up a few misconceptions regarding AGC-T. Remember this is a software defined radio and not everything works like it did on a traditional analog/dsp radio. http://kc.flex-radio.com/KnowledgebaseArticle50153.aspx -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Robert Jefferis Sent: Sunday, June 28, 2009 8:57 PM To: flexradio@flex-radio.biz reflector Subject: [Flexradio] Automatic Gain Control Threshold AGC-T versus reality Greetings all, I am wondering if anyone in FLEX LAND can tell me whether or not there is a known functional relationship between the AGC-T setting and receiver input signal to noise ratio (SNR). I have read several postings related to adjustment of AGT-T for good, or desirable performance. My experience with traditional receivers tells me that this parameter should, in principle, be a set and forget parameter. Pick the number of choice, typically between 0.5 and 2 micro Volts into 50 Ohms. Not that it matters, but I am using an F5K. Bob, KF6BC -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Automatic Gain Control Threshold AGC-T versus reality
AGC-T controls the threshold as you indicated you wanted. Below this threshold, the gain will NOT increase. Bob Robert Jefferis wrote: Bob, Continuing, I just looked at the AGC discussion on p. 109 of the F5K manual. The bullet describing the Slope (dB) parameter clearly states that there is an AGC threshold. Does the operating control panel AGC-T control actually adjust the threshold? Or, is the threshold hard coded? I do not really care about twiddling the threshold, I would like to understand just what the AGC-T is adjusting. Thanks. Bob ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] OT Re: Apple bashing
So we are going to start an FBE (Flex Bleeding Edge) reflector to save this reflector from technical talk about bleeding edge buggy development code. I am beginning to wonder who is actually getting saved ... (looking better EVERY day). ;-) Bob N4HY Tom Thompson wrote: Hey Brian, How about an Inverter from Radio Shack and run the Mac power supply from 120 VAC converted from 12 VDC. Tom W0IVJ Brian Lloyd wrote: OK. You guys know I am am an Apple Fanboi. I will be using my MacBook Pro to run the Flex for Field Day. But I need a way to power it from 12V as there will be no mains power at our site. No problem, just get a DC power adaptor, right? But wait, you *can't* get a DC power adaptor for the new MacBook Pro. Seems that Apple has changed to their funky (and proprietary) MagSafe connector that is held in place with a magnet so that, if you trip on the power cable, it comes unplugged without damaging the computer. Good idea. But they own the rights to it so no one but Apple can sell you one and Apple doesn't make a 12VDC power adaptor. The only solution is to cut the cable from the Apple-supplied wall-wart to the MagSafe connector and put a coaxial power connector in there so you can plug in a third-party 12V switching supply. Oh, I did find a company that would sell me one. The price was $135 and included a new Apple power supply in addition to the DC supply. If you just want the MagSafe connector by itself, the price is about $90, above the street price of an Apple power supply. I guess I would be paying to have someone cut the connector from the power supply and install the coaxial power connector for me. Oh, and they get to keep the power supply. Bad show Apple. If your stuff didn't work so well ... 73 de Brian, WB6RQN/J79BPL ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] OT
Terry Fox wrote: I still have a working Imsai 8080 with three 8-inch drives. It still boots CP/M and runs Wordstar, etc. I've got most of the CP/M and SIG/M user group floppies. Even early Pascal and C compilers. How about a nice game of chess? I also have two Altair 8800s, and an Altair 8800B turnkey, but they haven't been powered up for about three years. Plus a Xerox 820 in a homebrew protable configuration, that allows me to move files between CP/M and 5-1/4 IBM format. I even have an orignal Vancouver TNC, along with other old packet junk. Some other stuff did not survive my move to Charleston... Terry WB4JFI I might mention for those who don't know or didn't remember, Terry was around during the early days of packet radio and he wrote the AX.25 documents/specification. Terry is one of those without whom there would be no packet radio, no APRS, Bob N4HY (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] PowerSDR 1.18.1 AGC-T lag
What is your AGC setting , SLOW or LONG? Try medium. Bob N4HY Jack Haverty wrote: I've loaded PSDR 1.18.1 and it seems to work fine - Flex-3000, 3GHz single-core PC, sampling 96KHz 512 buffers. NR in particular seems to be much more effective even though I thought 1.18.0 was good. One change I've noticed between 1.18.1 and 1.18.0 is that the AGC-T behavior seems to lag when you move the control slider - i.e., there is a fraction of a second lag until the audio output changes. This is on USB, 20m, with only NR and SR active. If I have a certain level of background noise in the speaker, then drag the AGC-T to the right, the noise stays the same and then increases maybe a 1/4 second later. With 1.18.0 it used to be essentially instantaneous. Anybody else observe this behavior? It's not really a problem, but I'm wondering if it's an indication that my CPU isn't fast enough. The Computer-% reading doesn't change much as I do this, hovering in the 25% range all the time. Jack K3FIV -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 1.18.1 Audio Limiting
I've made multiple recordings and I had Eric make recordings of a 60 over S9 AM station. I am unable to duplicate what you are seeing. What I need for diagnosis of the issue is an IQ recording so I can see the problem in action. This will be a large file that probably won't fit through email so one will need to figure out how to make the recording available for download. 73's Bob N4HY Frank Mayer wrote: Audio limiting on AM and SAM receive very evident in the new release, just like it was in the previous release 1.18.0 with the SDR-1000. This issue started with the SVN test branch, SVN 2797 when the changes were made to the AGC. Frank, WA3JBT ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 1.18.1 Audio Limiting
But this is not a fix, it is a bandaid. I need an IQ recording of the problem happening. I am unhappy that Frank is having to set the AGC threshold to a pretty ridiculous level. What this says to me is that there is something wrong with attack and it needs to be investigated. I am very proud of SAM/AM so I don't want it to have problems like this. Bob N4HY Tim Ellison wrote: Look like you found the fix. The AGC was improved in the 1.18.x releases so this making this parameter change is very reasonable. -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Frank Mayer Sent: Saturday, June 20, 2009 4:22 PM To: Frank Mayer; flexradio@flex-radio.biz Subject: Re: [Flexradio] 1.18.1 Audio Limiting A point of interest. I am able to stop this audio limiting effect on AM by reducing the AGC-T control from the nominal setting of 90 to 60 and below, depending on the strength of the RX signal. This was unnecessary previously in 1.16.2 and earlier. -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 1.18.1 Audio Limiting
We completely agree. Frank Mayer wrote: It's not really a fix. It requires constant adjustment of the AGC-T and/or Preamp level to avoid the limiting effect on AM depending on the strength of the signal. - Original Message - From: Tim Ellison telli...@itsco.com To: Frank Mayer wa3...@usa.com; flexradio@flex-radio.biz Sent: Saturday, June 20, 2009 5:06 PM Subject: RE: [Flexradio] 1.18.1 Audio Limiting Look like you found the fix. The AGC was improved in the 1.18.x releases so this making this parameter change is very reasonable. -Tim -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] PowerSDR1.18.1 startup error
That is interesting. In the IDE (VS2008) it is set to .NET 3.5 and is somehow marking it as needing .NET 3.5 even though it is not actually using it. Thanks for pointing this out, it will be investigated. In the slightly longer term, this will become a moot point. PrettyBetty IS a CLI based application so it won't matter if PA19.dll is or not. PrettyBetty, when released, will be VS2008/.Net 3.5 32 or 64 bit application, depending on your OS assuming all of the 64 bit issues get resolved. So while my curiosity is piqued, the need for .NET 3.5 is imminent. Bob Steve Kallal wrote: My day job is .NET application development. There is a free tool from Red Gate called the .NET Reflector, found at http://www.red-gate.com/products/reflector/, which disassembles the IL code in an assembly. PA19.dll is NOT .NET assembly according to the Reflector utility. It does not contain a CLI header. Can any of the developers satisfy my curiosity about PA19.dll? It does not seem to be a real .NET assembly, but requires the .NET 3.5 framework to run properly. 73, Steve N6VL -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Dudley Hurry Sent: Friday, June 19, 2009 7:55 AM To: FlexRadio reflector Subject: [Flexradio] PowerSDR1.18.1 startup error When you start PowerSDR 1.18.1 and you receive a Cannot load PA19.dll error, check to see if you have Microsoft .NET 3.5 or 3.51 loaded.. This is now a requirement for 18.1 to run. If you had been using the trunk version, you should already have _.NET 3.5_ loaded and should not see this issue. Here is the direct link to .NET3.5 download. Do not delete .NET1.1 they are not mutually inclusive.. http://www.microsoft.com/downloads/details.aspx?displaylang=enFamilyID= 25fd-ae52-4e35-b531-508d977d32a6 This should correct the issue. -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] CQ WW contest has a new category, XTREME
For those who are amateur radio operators and are interested in software radio, cognitive radio, diversity reception, and other such things, the contest committee at CQ Magazine has put together a new category of operation to help promote innovation. The brain child of K3LR and K1DG with support from many other members of the committee made the following official rules and the announcement follows. Doug, K1DG, came to the SDR forum at Dayton and announced it directly to us (before the contest forum heard the official announcement). The Xtreme class is anything goes within reason and within reason is clearly defined and quite generous. Who knows if the within reason will continue to be as generous as this but the developer/geeks are clearly having the gauntley throw down. Some fantastic experiments can easily be foreseen. At the contest forum at Dayton, it was revealed that banks for Perseus receivers had been deployed around the world to record the contest and some truly fascinating analysis and use was made of these recordings. I am personally interested in being on a team to develop and operate in this class but please contact me OFF LIST, direct email. Here is the official announcement. Please, take this and send it everywhere you can think of where we might gather some interest. Bob McGwier N4HY -- This year at Dayton, the new CQWW Xtreme categories were announced. These new categories (single-operator and multi-operator) have been established to allow amateurs to participate in the CQ WW Contest while experimenting creatively with Internet-linked stations and other new technologies that currently are not permitted in any of the existing contest categories. The full rules for the new Xtreme Category, as approved by the CQ WW Contest Committee, appear in June CQ magazine and also at: http://cqww.com/CQ_WW_Xtreme_Rules.pdf This PDF file may be copied and re-posted to other Web sites as long as this text is included: Reprinted with permission from the June 2009 issue of CQ magazine; copyright CQ Communications, Inc. Please forward this email to your local club reflectors and newsletters. The new categories are effective with the 2009 CQ WW Contest later this year. In essence, (almost) anything goes! The almost part means that you must obey the rules of your country, including power (up to the CQWW 1500W maximum), licensing, and remote operation (if you use it). It is permitted to use multiple transmitting sites with one callsign (if legal in your country), but all transmitting sites must be located in the same country and CQ zone, and only one signal is permitted on a band at any time. Single-ops with packet, Skimmer, robot stations, on-line databases, etc. are OK! Multiops with remote operators and remote receiving sites around the world...OK! The initial response at both the Contesting Forum and SDR Forum at Dayton was very positive, with some of the SDR Forum attendees actually challenging each other in public! This is a chance for experimenters to see which technology innovations actually work best in competitive situations. If you have questions about the rules, please send them to xtr...@cqww.com There is an also email reflector (xtreme-t...@contesting.com) set up for discussions relating to these new categories. You can subscribe by sending email to xtreme-talk-requ...@contesting.com with the word SUBSCRIBE in the subject line and message text, or go here: http://dayton.contesting.com/mailman/listinfo/xtreme-talk (thanks, K5TR) K3LR has stepped up and is sponsoring the K3TUP Memorial Trophies for the winners of the single-op and multi-op Xtreme categories. 73, and let the Xtreme Contesting Games begin! Doug K1DG -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Test Branch SVN 3166 improved QSK?
Yes, but the changes you are referring to actually occurred in 3160. I contend you just didn't svn up until 3166 after I made those changes. There have been two major improvements in CW recently in the test branch. These are being beat up and more done before they are released. Thanks for the feedback. This will all be in the upcoming stable release. Bob knesbitt wrote: John, this is a major break through if in fact its reproducible. What more have you learned since your original post (I see no comments in this regard on the reflecto). Bob, come up for air and fess up for your actions. Kirb - VE6IV -- The latest Test Branch SVN 3166, which according to the change log, redone vfo initialization, seems to improve the CW QSK significantly. The TXRX transition sounds better on the audio, no pop, now smooth sounding. My Delay at 15ms seems best and quick. I can also now set the Sample Rate at 192K and Buffer to 1024 with no issues , whereas before I had to use 192/2048. I don't understand what N4HY is doing on Test branch SVN 3166, don't know if it is supposed to impact the CW QSK, but it appears to improve the fast QSK. 73 John N3WT ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Dilemma
She who must be obeyed ALWAYS comes first. Just ask her. If you need outside information, just ask N2HPE. Bob N4HY Ray Andrews, K9DUR wrote: Okay, buys ( gals). I have a serious dilemma. My wife's FLEX-3000 is scheduled to be delivered today. Do I put the rewrite of the SDRDataTransfer utility to support .XML files on hold while I set up her new rig? Or do I press on with the development hire a good divorce lawyer? 73, Ray, K9DUR ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Click tuning with a Locked panadapter operatation
David Beumer W0DHB wrote: Gerald Do you know yet if the September release will be VS 2008 and 64 bit OS compatible ? Thanks Dave W0DHB That is the goal of the software developers without the gravitas of a promise from the CEO. We think we can. The month of July is a big month. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] All using SVN 3166 or higher
Hello friends of Flex! blip/flip fixed in SVN 3170 in the test branch. BUT THIS HAS NOTHING TO DO WITH THE OFFICIAL FLEX RELEASES. Folks, I do want to really urge you to use direct email to individuals involved in the coding AND the bug reporting system to report on these branches. It leaves the wrong impression with people who are completely unfamiliar with svn, branches, trunks, and the impression is that we have buggy unfinished code being distributed or that we are keystone cops. There is only one place for official releases. To the best of our knowledge, that code is stable, usable, wonderful. We are doing development in the open unlike almost anyone else in the business but we cannot be punished by having bad publicity for doing something good and unusual. If you are one who cannot take a download from svn, watch it completely break, and then be content with waiting FOREVER if necessary for a fix after you have given an officially acceptable report, then a) don't take the download and b) stick with the official release. These are on the web site. THAT is what should be discussed here unless it is your intent to harm Flex Radio. I do not believe that is anyone's intention and I urge you to stop. If you think this is a reaction to a specific incident as well as a collection of previous incidents. You would be RIGHT. On the blip/flip in the test branch (completely ALPHA unstable test code, that would be why it is called.. TEST). Last week Eric and I were trying something else. We left it in an indeterminate state, one that is quite normal in alpha code, when Eric went away for 3 days and I took a badly needed weekend off (I have been traveling nonstop for 3 weeks). We cannot do this and have a dozen people howl on the reflector here giving hundreds of potential customers the impression that we are the keystone cops. I uploaded a sdr library (DttSP.dll) that had a problem in it. Dozens of emails later in this reflector and we have given the wrong impression to almost all who have stopped by. The code we are talking about is not an official release and I am now taking the following discipline for myself. I will not discuss alpha code here in any way ever again. I will personally simply ignore all mention of them here. I urge this on my fellow coding types. A remedy to our communication is on the way I believe by giving a place for people who want to test possibly broken code openly and Gerald will be announcing his proposed solution soon enough. We want your input, we cannot live without it, but it does none of us any good to hurt Flex Radio while we are trying to do good. The good has to outweigh the downside or the downside will simply win. 73's Bob N4HY Dudley Hurry wrote: It has been reported that if you see the panadapter jump for normal to flat line about every second or so.. To get out of these situation, change the Sample rate to a different sample and then back. I've seen this on the 3K and 5K intermittently. I can't explain why, but the change in sample rate seems to help. 73, Dudley WA5QPZ Brian Lloyd wrote: On Wed, Jun 17, 2009 at 6:31 AM, Bob McGwier rwmcgw...@gmail.com wrote: Yes, but the changes you are referring to actually occurred in 3160. I contend you just didn't svn up until 3166 after I made those changes. There have been two major improvements in CW recently in the test branch. These are being beat up and more done before they are released. Thanks for the feedback. This will all be in the upcoming stable release. Test Branch SVN 3160 works fine. SVN 3166 and 3167 still appear broken. Any idea what happened between 3160 and 3166 to cause the problem? 73 de Brian, WB6RQN/J79BPL ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http
Re: [Flexradio] Searchprotocolho
Uninstall Windows Desltop Search. Reboot. Install Google Desktop. Reboot. Log in. Go away for a day. Come back and have fun after Google Desktop is finished indexing. It will put itself to sleep while you are working so you need to leave your computer alone for the indexing job to get done quickly. I HATE it when MS fears others and then forces these stupid installs using Microsoft Update on the unsuspecting and they turn it to be so much CRAP. Bring up Micrsoft Update. When you see in suggested software Windows Desktop Search or Windows Search, click the plus + to expand the text. Hit the check box that says NEVER bother me with this crap again (or something like that). 73 Bob N4HY Tim Ellison wrote: It isn't a virus, per se. It is the Windows Desktop Search feature otherwise known as the performance killer from %#$ Google Windows Desktop Search -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of k...@comcast.net Sent: Saturday, June 13, 2009 6:35 PM To: N4PY2 Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] Searchprotocolho Occasionally? 'Bout every 10 minutes? Could it be that the 17th (and truncated) character is a 'g'? Other than verbose DXers, the biggest HOG I know of is/are microsoft services. 73, - Original Message - From: N4PY2 n4...@earthlink.net To: FlexRadio@flex-radio.biz Sent: Sat, 13 Jun 2009 22:03:26 + (UTC) Subject: [Flexradio] Searchprotocolho Occasionally my CPU usage goes very high. I see searchprotocolho as the process hog. What is this and is there anything I should do about it. Carl Moreschi N4PY 121 Little Bell Drive Bell Mountain Hays, NC 28635 -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Frank and Sandy
Frank Brickle (AB2KT) is married to a well known psychologist, Sandra Leiblum. If you do not follow Frank's facebook, linked in, etc. social networking you may not know some news. They were vacationing recently and Sandy suffered a horrific biking accident. She has had serious surgery but is comatose. Her doctor's are hopeful (we can only hope that means a full recovery). I know all of you will want to join me in sending prayers, good wishes, good vibes, etc. to Frank and Sandy. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] vhf/uhf digital modes and repeater operation
I believe that we should follow the route that Ed is suggesting, even as it sticks in my craw. We can buy a dongle for less than $125 depending on who you get it from and with how much support, etc. that will do the AMBE encoding and decoding. We can have open source D-Star but talk to this dongle and much more. I think we hold our nose and realize we are going to be interoperable with P25 services of first responders and paying much less than would otherwise be required to get D-Star. I am an idealist, or otherwise I would not have given away five years of effort to Flex and this community for NOT ONE SINGLE RED CENT outside of those things my employer wants me to do. Yet for the greater good, I believe in this case, we should compromise. When and if a new standard becomes available, and we can get it done open source GPL, we drop it in. Bob N4HY Woodrick, Ed wrote: Sure, we'd all like everything to always be free. But that's not reality. DVSI has invested millions of dollars into the development of a state-of-the-art solution with AMBE. It is the successor to the IMBE chip that is used in the P25 protocol. It provides compression that is well beyond that of the open source solutions that exist today. And, even more appropriately, it fits in a handheld radio. But, if the Flex community doesn't want to do something that is currently being done with other VHF/UHF radios, then that is definitely their prerogative. Ed WA4YIH -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Bill Tracey Sent: Monday, June 01, 2009 11:27 PM To: flexradio@flex-radio.biz Subject: Re: [Flexradio] vhf/uhf digital modes and repeater operation One could certainly do it, but is it not the start of the path to madness? Imagine if you needed a dongle for PSK31, one for RTTY, one for WSJT etc. Personally I'd rather to see the SDR community advance the Free (as in freedom) state of the art than support solutions that are implemented in hardware solely to protect a proprietary codec. Just one ham's opinion. Cheers, Bill (kd5tfd) At 07:55 PM 6/1/2009, Woodrick, Ed wrote: But it doesn't preclude the use of D-STAR. (and there is D-STAR data without voice) There's a number of efforts where the AMBE chip (a lot of state-of-art technology crammed into a little chip) is being used to decode and encode D-STAR signals in a manner completely consistent with the open source license. You just need to pass the digital data through the AMBE chip. And with the proper receiver modes, I see no reason why PowerSDR couldn't decode and encode the GMSK signal necessary. Ed WA4YIH ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Is it worth the trouble??
I only have FIVE Flex products and I am going to buy that many 1500's when they come out and I am STILL going to give away my programming. ;-). Bob N4HY Lee A Crocker wrote: Heck Dude I'd buy the radio again and 9 more just like it 73 W9OY ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Flex 5000A in the WPX contest and 30 day report
NZ8J wrote: I've had the Flex for almost 30 days now and have really enjoyed it for the most part. For one thing, as a cw only operator I am not fond of the loud mechanical T/R relay used in the 5K. After a lot of searching I was able to find a set of headphones (thanks to John N3WT) that keeps out 90% of the relay noise with the radio sitting about 24's from the operating position. Now operating the Flex fast break-in with about 15 - 18ms delay is a pleasure, also very little if any pops or clicks at that delay setting and with the new headphones virtually no relay noise. snip --- I am well satisfied with my purchase and am considering the little 5W qrp rig when more details about it become available. 73 Tim NZ8J Tim: Could you tell us something about your computer, the model, processor, firewire (mobo, not mobo, if not which plug in card, etc.) Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Flex 3K rocks!!!
Dave Gomberg wrote: Got my first new country on the Flex 3k tonight! Minami-Torishima.Gee, I have only had it for a week, at that rate I will make number one honor roll in two years! Thank you Gerald and all!!! Unfortunately, one point does not make a useful graph. After 20-30 points, you will see the rate becoming smaller and smaller as you knock off the more easily gotten ones and it becomes asymptotic to the current highest number ..., the rate tending to zero. After I got to 290, I just ran out of gas and motivation. GOOD LUCK. One thing I do in pileups when operating split for the DX, I find a hole in the pileup to place my transmitter using the panadapter. It works like a charm. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] TX Phone Fixes
We all owe John our eternal gratitude for finding serious bugs in the ALC system that I have fixed (ending overshoot and some internal ghosts/IMD forever).He put some serious test equipment on the job (that I did not have at my disposal) and within literally a few hours of studying his documentation and looking at the code, the problem was fixed. Much to my chagrin, his first email on the subject wound up in one of the cascaded bit buckets (spam filters) that protect me from the world. Gerald then showed me the document while I was in the middle of doing the first round of the wideband IQ work (also available in the test branch) and it just slipped my mind until a month ago. In an attempt to eek out the last measure of good sounding high performance TX, John suggested this new ordering and did his own version of the reorder. It does indeed sound great. It his MEASURABLE lower in band IMD (the transmit filters are so steep it had to be in band from the DSP). This is the test branch, svn 3122 and higher. It has new ALC, wideband image reject, and much more. WARNING WARNING WARNING, DANGER WILL ROBINSON. The image reject in the new code requires you to recalibrate your radio and store values in the EEPROM just like now. There is no easy mapping between old and new so the old goes away and the new replaces it. Once you do this, you will be unable to get good image rejection upon returning to the trunk or 1.18.0 Release without recalibration again. This can be a really tedious process. The new algorithm is blistering fast but to go back, you have to do the old stuff. The wideband image reject then dynamically tunes to signals on the band from this starting point. If things go well, this will be in the new release, and it appears to be a complete winner so far. So if you do not understand what I am talking about in this just finished pseudo-English paragraph, DO NOT USE THE TEST BRANCH. We really cannot be bugging Dudley, et. al. with support issues on this test code. They do not have sufficient hours in the day. Bob N4HY john_eck...@agilent.com wrote: As of svn 3122 the phone tx performance of PowerSDR is greatly improved (IMHO). The tx alc is working like a champ. You can drive your linear harder without it tripping. The compressor (DX Button) and compander (CPDR) sound great. To set up the audio, set the TX Meter to 'ALC Comp' and adjust the mic gain until you get 2 to 3 db of alc compression on voice peaks. Then you can run 3 to 5 db of 'DX' for full sounding high quality rag chew audio. Or run it all the way to 10 to bust through the pile ups. Let us know what you think. 73, John k2ox ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] SDR-1000 vs Flex-3000 is it worth the upgrade?
To take full advantage of WBIR, you need a signal source. For those of you with 8640B's or the Elecraft signal generator, you will get good performance with the SDR-1000. For those without these signal generators, you will get BETTER performance on strong signals than you are getting now with the SDR-1000 in an automatic mode but there is no automatic storage of your results. It dynamically tunes to signals on the band and then retunes every 10 seconds at a higher rate. The Flex 3000 and 5000 have built in test equipment and a EEPROM for storing calibration values. The SDR-1000 has no built in test equipment and the calibration is as good as your signal source and temporary. Bob N4HY Lee A Crocker wrote: The F3K's improved hardware takes full advantage of improvements in the software like WBIR. Whether its worth it depends on what blows your skirt up. http://w9oy-sdr.blogspot.com/2009/05/wbir.html 73 W9OY ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] WBIR
READ EARLIER WARNING ABOUT EEPROM AND CALIBRATION Eric Wachsmann wrote: Not in the trunk. Just the test branch. Eric Wachsmann FlexRadio Systems On Sat, May 30, 2009 at 9:21 PM, Tim Ellison telli...@itsco.com wrote: It is in the latest test branch and the trunk. -Tim -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] SWR-Meter shows always 0,0:1
Bernd Schnell wrote: My SWR-Meter of the F5K (1.18.0) shows always 0,0:1 during transmitting, even when the swr is bad. When I switch to RefPwr, it shows the power coming back to the reiceiver correctly. I am using the installed ATU and I have also an ATU extern (when the installed is disabled). 73 Bernd Because of the circuit in the F5K, it can read reflected power, it can read forward power, but it cannot read SWR on a dynamic signal. SWR works correctly only with a steady state signal like TUNE. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] WBIR
Can you tell me where Penny is? I still have a crush. Bob Cal Latham wrote: Downloaded Virgin copy of 3122. With help from ROBOT (Model B-9, Class M-3) Did Image tests all OK and in ORBIT! All the best, WILL ROBINSON ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Observations Using the Diversity Branch
Chuck: You fell into my trap but did not get caught and proved you are getting good results and that you knew the things to expect. The granularity of the controls is too large and the amplitude variations favors the strong antenna on RX1. You have all of this exactly right. I am not sure Alex released a copy but maybe if we sweet talk Phil, he will post a screen capture of the control panel. We are deciding on what are the right things to try and automate and how we get reasonable control over this. THANK YOU for the feedback. Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] SIMD from Missouri
I believe in SIMD but I had a rude awakening today. My P4 HT socket 478 processor does not have SSE3, much less SSE(I wish). I would like for people to download (using svn) branches\n4hy\SIMD_ID\Source\SIMD_ID\Release\Identify_SIMD.exe or if you have x64 branches\n4hy\SIMD_ID\Source\SIMD_ID\x64\Release\Identify_SIMD.exe and run this and make sure it delivers the answers you expect and does not blow up. There will be run time identification of architecture and optimized routines speeding up the worst offenders such as agc soon. Just when you thought we were going to give you a breather.. Thanks, Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] [SPAM] Re: RX Image Reject Cal SVN : 3029
Tim Ellison wrote: Do it anyway. If the feature works as intended, it will get classified as a NAB (not a bug). There are no points deducted for doing this as it falls into the category of no question asked is ever a bad question. Sometimes user perception of how something should work effects changes in the feature to make it more usable. -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Eddy Van de Velde Sent: Saturday, May 09, 2009 12:19 PM To: flexradio@flex-radio.biz; Bob McGwier Subject: [SPAM] Re: [Flexradio] RX Image Reject Cal SVN : 3029 Sorry, this was just a simple question and not intended to mail perceived failures to the reflector. It was no complaint either. By the way, how could one file a bug report if he does not know if something is ment to be as it is. Let me support Tim 100% in this. I WANT your complaints. But I want them in a way that I can easily consume them, keep up with the progress on them, make notes that are read by other developers (in the blog on the bug report). This has very little to do with complaining and a whole lot to do with: If you want me to be effective, you have to help me be effective. Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] VS2008 and Win 7
Jim KJ7S wrote: Sorry...for those wondering I am referring to the VS2008 not running in the 64 bit win 7... Jim The Sum of Knowledge and Experience, is Wisdom Censor Yourself, Not Others ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ I am in the process of getting our act together to run a fully 64 bit version under VS2008. There is none now. It is hilarious to me that just as we need it, the underlying libraries are being delivered with x64 bit support. I should not have been, everyone needs that support but these devices we use are some of the most demanding in terms of user interface and realtime performance. Eric or I will announce here with Win x64 (any version) works. QRX Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] New architecture SVN Alpha code?
I thank everyone for their criticism, positive comments, negative comments, etc. on the new architecture thread that were aimed in my direction. I cannot speak for Flex, since I don't work for them or have a financial interest in Flex, but I have a couple of comments. I read all of the thread with interest and so has everyone at Flex. Those who have contributed and still contribute to the contents of the svn repositories and/or the hardware, user relations, commercial opportunities are SO much harder on ourselves than you could ever be. We smack each other about with cold hard facts and we argue as strongly as people can and remain on friendly terms. The most useful place for your direct criticisms of functionality or lack thereof is the bug database so we can keep track and make the internal smacking about remarks while we attempt to aid your enjoyment of the radio and the software that runs it and fix our mistakes. See you in Dayton I hope and hope you will enjoy seeing our work roll out in the next weeks, it should be fun! Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] RX Image Reject Cal SVN : 3029
Eddy Van de Velde wrote: Is it correct that for the SDR-1000, the RX Image Reject Cal has no function in the Test Branch v1.19.0 SVN : 3029 ? Eddy ON5UQ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ It has no function. The image rejection in ALL radios using the code, softrock through Flex 5000, and using the test branch, are done automatically and trained from on air signals. This is not true of official releases and code in the trunk. What we are interested in is BUG REPORTS, not email to reflector giving us your perceived failures of this new code. It still needs further testing and refinement before it is moved into the main body of the code. Again, this note only addresses the test branch. 73's Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] New architecture SVN Alpha code?
There is a private repository for it now, the name wll be revealed at Dayton and it is not yet available to the public. We do not want people testing things that might be so broken that you are either operating illegally or may damage your radio until we test things much more carefully. Surely that is both obvious and seems prudent. Bob N4HY Tim Ellison wrote: There is no new architecture software available to test with. It is still in pre-alpha development available only to the developers. It isn't at a state where you can get it to run since there is no GUI for it yet. Just low level components are talking to one another. -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Barry Jablonski Sent: Friday, May 08, 2009 10:43 PM To: flexradio@flex-radio.biz Subject: [Flexradio] New architecture SVN Alpha code? Can anyone point me to where the new architecture alpha code (SVN) resides? I'd like to start testing it. Barry ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Two branches of interest to increase your confusion
Philip Covington wrote: On Sat, May 9, 2009 at 8:03 AM, Tim Ellison telli...@itsco.com wrote: The new XML data storage structure is MUCH better than Access. XML after 4 long years... wonder why it took so long? ;-) 73 Phil N8VB ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Major league if it ain't broke. All of the windows developers are happier. No more conflcting libraries showing up costing lots of time to replace (behind the scenes). Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] I/Q Calibration
Dave Muskopf wrote: Just a second here--. Do I still need my xg2 for image cal? When I tried it the other day (4/28 svn) nothing happened, nada. Later that day I found a fellow on 40m at two places, one usb one lsb! Checking with version 18.1 this didn't happen and image cal worked fb. As I shipped my 1K off for work shortly there after I didn't get to try it again. W8XO ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Dave: This is in a test branch only. Were you running the test branch or the trunk? I remind everyone it is in the test branch for a reason. It is under test. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Two branches of interest to increase your confusion
The test branch and the VS2008 branch have undergone significant revisions. Both of them have a brand new database system (YEA ERIC, HIP HIP HOORAY). We are using XML. You will notice that as soon as you start up, the start up just got faster. You will notice as soon as you click apply in the setup form, it will not run your CPU up to the rail to send two numbers to the database. I cannot tell you how happy I am that jet databases are on their way out for good. This is required because Jet is dead in Vista 64 and probably beyond. Your database will NOT be automatically converted in these test branches. You will have to start over with a clean database. In VS2008, it is built using .NET 3.5. You must go to microsoft update and in optional software for XP users and make sure you have .NET 3.5 load. Both the GUI and PA19.dll REQUIRE this to be installed. The test branch is in the same place as always. VS2008 branch (which should now run on Vista 64) is in branches/n4hy/VS2008/bin/Release will contain all you need to run it. The console banner reflects that you are running the VS2008 branch now. For those of you just using and enjoying your radio, this is all very much test code. Go about your daily business and don't worry about this stuff until it gets far enough along to be really stable and in the trunk. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Two branches of interest to increase your confusion
Ray Andrews wrote: Bob, Is it you guys sole purpose in life to create work for me? Now I am going to have to get busy rewrite SDRDataTransfer.exe to handle both .mdb .xml files! No rest for the wicked! 73, Ray, K9DUR I have been writing programs for other radio amateurs to use since the mid-1970's. Rest assured, no good deed goes unpunished. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Two branches of interest to increase your confusion
One correction. The test branch has not been modified. Eric has not merged his branch to test. SORRY for the false alarm. It will be done quite soon. VS2008 does indeed now use xml for the database entries and .NET 3.5 is required. Bob Tim Ellison wrote: HOT DIGITY DOG! NO MORE ACCESS DATABASE. HOOTIE WHOOO! I think I'll organize a wake for it! Long live XML. Thank you * 10^30 -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Bob McGwier Sent: Thursday, May 07, 2009 6:48 PM To: FLEX USERS Subject: [Flexradio] Two branches of interest to increase your confusion The test branch and the VS2008 branch have undergone significant revisions. Both of them have a brand new database system (YEA ERIC, HIP HIP HOORAY). We are using XML. You will notice that as soon as you start up, the start up just got faster. You will notice as soon as you click apply in the setup form, it will not run your CPU up to the rail to send two numbers to the database. I cannot tell you how happy I am that jet databases are on their way out for good. This is required because Jet is dead in Vista 64 and probably beyond. Your database will NOT be automatically converted in these test branches. You will have to start over with a clean database. In VS2008, it is built using .NET 3.5. You must go to microsoft update and in optional software for XP users and make sure you have .NET 3.5 load. Both the GUI and PA19.dll REQUIRE this to be installed. The test branch is in the same place as always. VS2008 branch (which should now run on Vista 64) is in branches/n4hy/VS2008/bin/Release will contain all you need to run it. The console banner reflects that you are running the VS2008 branch now. For those of you just using and enjoying your radio, this is all very much test code. Go about your daily business and don't worry about this stuff until it gets far enough along to be really stable and in the trunk. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Diversity Reception for Flex 5000 owners
radio...@frontiernet.net wrote: Bob, how would this work with the SDR-1000 and Flex3000 considering they only have one RX? Are you using the Multi-Rx capability in PowerSDR and them applying the ESPRIT algorithms from the paper you referenced in this email?? 73, Dennis Petrich Amateur Radio Station K0EOO Lakeville Minnesota USA k0...@arrl.net 952-898-1082 Yes, but it will not be to do diversity combing on the same transmitted signal from independent receive paths. It will be do other enhancements that can be made by understanding the ENVIRONMENT AROUND the signal of interest. Also the SDR-1000 and the Flex 3000 are BOTH capable of supporting frequency diversity reception and frequency diversity path transmission BECAUSE of their wider IF paths that sustain large dynamic range as are other SDR offerings in the ham community now. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Diversity Reception for Flex 5000 owners
Lee A Crocker wrote: I made a few more clips. The effect can be spectactular or very subtle. In 40-E I found on static the source is sort of from a quadrant and so the notching is very broad. None the less I could get about 3dB of noise reduction. In 40-F the SWBC is dramatic. The station was very weak. If this had been a CW station it would have been Q5. Finally in 40-G the AM BC station is about 4 miles north of my house and extremely strong. The effect is amazing!! (and the tuning is critical) As to the static canceling question, you have no real need of using the second receiver, just make another watch receiver and use the in-band noise you already have contained in the 192khz base band. I expect this test by Bob is the first step toward that goal. Once that is accomplished it will be the gorilla of next killer apps!!! 73 W9OY w9oy-sdr.blogspot.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ Thanks for all of the work and the feedback from all including Jim Barber, N7CXI . We made the steps in the controls too large. On point sources that are narrowband for real, it will be fairly sensitive control. Now that this technique is included in the code, and after we start doing multirate sampling techniques this week, a pretty thorough cleaning and optimization will need to be done with all of your inputs. A raft of adaptive signal processing things are on Eric's board for both the receiver and the transmitter. Each and everyone of them will be a significant improvement in radio for us and separate these offerings as SDR's from traditional radios even more. This will be crystallized/finalized in DttSP 3 in cgran as Frank makes it fit the overall architecture. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Diversity Reception for Flex 5000 owners
Wow is right. It is hard to understand just how impressive 40F really is. 40G sounds the most impressive but to the trained ear and tools, 40 F is amazing. The Flex 5000 is utterly coherent through the oscillators. It is two different DDS's that are synchronized by a built in system which Gerald made sure was supported. As soon as we made the software oscillators coherent (identical in fact) and then applied a phase and amplitude modification (scalar) to one of them for phasing, we get a phase stable system. I was expecting it to work but I had no idea it would be this impressive. More things like this are to follow. Frank mentioned one person who had done some phasing experiments. I would also like to mention Alex Shovkoplyas, VE3NEA who has done a really neat version. I intend to steal his user interface idea completely. It makes both mathematical and user sense. Bob Lee A Crocker wrote: I made a few more clips. The effect can be spectactular or very subtle. In 40-E I found on static the source is sort of from a quadrant and so the notching is very broad. None the less I could get about 3dB of noise reduction. In 40-F the SWBC is dramatic. The station was very weak. If this had been a CW station it would have been Q5. Finally in 40-G the AM BC station is about 4 miles north of my house and extremely strong. The effect is amazing!! (and the tuning is critical) As to the static canceling question, you have no real need of using the second receiver, just make another watch receiver and use the in-band noise you already have contained in the 192khz base band. I expect this test by Bob is the first step toward that goal. Once that is accomplished it will be the gorilla of next killer apps!!! 73 W9OY w9oy-sdr.blogspot.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Diversity Reception for Flex 5000 owners
Jim: We can do this right now with a software receiver. We need to make the oscillators coherent in the same way we have done (in software). So this will be usable by SDR-1000 and Flex3000 owners. Good idea. I do not agree that the algorithm you suggest is the correct one but it will be the first one because it is easy. It will be applicable to HF broadcast very quickly. The algorithms based on MUSIC and ESPRIT are better suited, especially to the typical amateur installation where the elements are not identical and not spaced the correct distance apart. http://eprints.eemcs.utwente.nl/15144/01/final_report_Jasper_Vrielink.pdf http://www.springerlink.com/content/y8001q047g520398/ These algorithms allow for much more than two elements and are pretty efficient when only two elements are involved. My work partners and I are running a phased array with SDR design contract with a well known (not Flex) SDR hardware manufacturer and these algorithms will be part of the adaptive phased array work that must be done. Again, open source will benefit all. Happy Cinco de Mayo to all! http://twitpic.com/4mqnv We are about to embark on some SERIOUS adaptive algorithm development with DttSP, Flex, Gnuradio, etc. all involved. All of us will benefit. Jim Barber wrote: Not being familiar with the architecture or sources, would there be any value in developing a 2-input, LMS-style noise reduction scheme using the same antenna for both receivers and a small frequency offset? (RX2 would be tuned to an unoccupied noise frequency as close as possible to the active RX1 operating frequency) That technique has been successfully used elsewhere and has the advantage of adaptively canceling any static or long-term difference in phase between the signals. (primarily group delay in this case?). The obvious disadvantage is having to choose a suitable noise frequency on a busy band, assuming one is available. Thoughts? Thanks, Jim Barber, N7CXI -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Diversity Reception for Flex 5000 owners
You idea is a good one. Period. That is all you should take away from my remarks. I had not even begun to think of doing coherent processing with the software receivers except to suck off interfering sidebands from other signals in our passband. Thank you. John lovingly calls it the Bob Sucker. DUMB. ;-). Bob Jim Barber wrote: Thanks for the reply, Bob. I have no axe to grind with regard to any particular algorithm, but I did want to make sure what I thought would be the simplest/most common case would be covered; IE one antenna available and the desire for the most effective noise reduction/cancellation. Having done that, I'll retract my nose and let you guys get back to your (excellent) work. Thanks 73, Jim Barber, N7CXI Bob McGwier wrote: Jim: We can do this right now with a software receiver. We need to make the oscillators coherent in the same way we have done (in software). So this will be usable by SDR-1000 and Flex3000 owners. Good idea. I do not agree that the algorithm you suggest is the correct one but it will be the first one because it is easy. It will be applicable to HF broadcast very quickly. The algorithms based on MUSIC and ESPRIT are better suited, especially to the typical amateur installation where the elements are not identical and not spaced the correct distance apart. http://eprints.eemcs.utwente.nl/15144/01/final_report_Jasper_Vrielink.pdf http://www.springerlink.com/content/y8001q047g520398/ These algorithms allow for much more than two elements and are pretty efficient when only two elements are involved. My work partners and I are running a phased array with SDR design contract with a well known (not Flex) SDR hardware manufacturer and these algorithms will be part of the adaptive phased array work that must be done. Again, open source will benefit all. Happy Cinco de Mayo to all! http://twitpic.com/4mqnv We are about to embark on some SERIOUS adaptive algorithm development with DttSP, Flex, Gnuradio, etc. all involved. All of us will benefit. Jim Barber wrote: Not being familiar with the architecture or sources, would there be any value in developing a 2-input, LMS-style noise reduction scheme using the same antenna for both receivers and a small frequency offset? (RX2 would be tuned to an unoccupied noise frequency as close as possible to the active RX1 operating frequency) That technique has been successfully used elsewhere and has the advantage of adaptively canceling any static or long-term difference in phase between the signals. (primarily group delay in this case?). The obvious disadvantage is having to choose a suitable noise frequency on a busy band, assuming one is available. Thoughts? Thanks, Jim Barber, N7CXI -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Diversity Reception for Flex 5000 owners
Eric and I have begun adding the diversity reception capability to the Flex 5000. It will work for those 5000's which have the RX2 installed. In my diversity branch, one can find the enabled code. It is VERY rough but as you can tell from Lee's blog: http://w9oy-sdr.blogspot.com/ the software antenna diversity can be used for signal enhancement by increased gain or by noise source nulling. It is rough to use and must be done manually for now. If you start running the code svn co svn://206.216.146.154/svn/repos_sdr_windows/PowerSDR/branches/n4hy/diversity/bin/Release you will be able to type ctrl-alt-D and bring up the form that you can see on Lee's blog. With RX1 and RX2 hooked to separate antennas, you tune the array using the right hand side of the DSP form. When you bring it up, and you have set RX1 and RX2 to the same mode and filter size, you click sync and then enable. This does several things. It locks the two VFO's together in hardware and then enable does it in software as well. You then play with mag, angle, and gain to optimize the signal you are wishing to listen to. This is pretty rough, but it does work. This will be automated for HF Shortwave folks in SAM-Diversity as soon as possible to do automated signal combining and as we learn from that, we will add additional capabilities. After this is completely vetted and made easier to use, it will be added to the main stream. THANK YOU to Lee for doing this blog entry and adding the mp3's showing the effects. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Flex 3000
Edwin Marzan wrote: Considering that the differences are not so subtle will there ever be a case where the 5000 would be able to hear a weak signal (or somesuch) that the 3000 or 1000 couldn't hear? Edwin Marzan AB2VW There are cases where you can cause intermodulation distortion in the 3000 that COULD mask a weak signal of interest that would not occur in the 5000. The cost differential between the 5000 and 3000 are definitely NOT driven by the change in receiver dynamics. The cost differential is all of the extras in the 5000 making it one of the do-all class radios. Diversity reception being the one that I am working on in my branches now would be a case in point,etc. The cost of the RFIO and the cabinet to include it alone make up a large porition of the difference in cost, as well as the quality second RF path. The necessitates duplication of DDS, controls, etc. for the RX2. The differences in cost between the 3000 and the 5000 are completely understandable is my only real point. But to answer your question more practically, there will be very few cases on a band that is not loaded wall to wall with contesters (as an example) that you will ever experience receiver dynamics differences so most of the time, they will hear about the same. Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Flex 3000
Ross Stenberg wrote: Reading between the lines it appears that the 3000 is every bit (no pun intended) the radio that the 5000 is. I'm sure that this was a delicate line to follow during the development of the 3000. The differences appear to subtle. B The differences are not so subtle. The IF bandwidth in the 3000 is limited by the less expensive codec to 96 kHz. Also as a result of the less expensive codec, the IMD dynamic range will necessarily be not quite as good as the 5000. But two things, that does not mean it is not good. The dynamic range is excellent and Flex will soon or has published the numbers. The 3000 will not support the second receiver and does not have the fancy RF/IO board with all of the antenna possibilities.For these and many other reasons I won't detail, the 3000 is $1500 while the 5000 is considerably more. But the 5000 is worth the extra money in my mind when you consider all that is packed in and I prefer it. I know that major things are happening with the software now for both (and the SDR-1000) so I think all Flex users will benefit from their continuing loyalty and patience. Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] My Flex History
Eric Wachsmann wrote: This isn't hard to imagine given CPU benchmarks like Passmark ( http://www.cpubenchmark.net/). The Atom 330 gets 586 marks while a Q6600 (quad core) gets 2859 marks. Even the lowest end E4000 series Core 2 Duos get 1000. The Atom 330 is roughly equivalent to a P4 3.6GHz based on this benchmark. Eric Eric and I were supposed to meet yesterday online for a four hour session on the resampler. I was derailed by work (my paying day job). Shortly the Atom 330 will be overkill for this work. The cpubenchmark measures things that are inappropriate for our application and while it is relevant, it is not the whole story and by a lot. In one of my branches, and as it is perfected, moved into the test branch and then the main distribution, we will downsample the computations to the minimum needed. So for example, everyone who wants a 2.7 kHz channel will actually have everything but impulse noise (NB,NB2) running at a much reduced sample rate. The sample rate will necessarily be an integer divisor of 192000 samples per second. So the 2.7 kHz channel MIGHT be done at 3 ksps, but will certainly be done at 4 ksps or less, the exact same operations will be done but the amount of CPU required to do them will be reduced by a factor of 48 or 64 (4 kHz or 3 kHz respectively). If you want to do DRM, for example, the rate will be reduced to 16 ksps probably, etc. The complex sampling rate needs only to be larger than channel you desire. The single biggest gain for us will be in the application of the agc which is the current pig in the entire operation. Next to downsampling, the agc will begin to use approximations for sqrt(SUM (sample_mag)^2) and that will be another hug factor, so large that we will not call agc the pig any more. As soon as that is not a pig in the agc, we will upgrade the overall structure of the agc. Our current smallest time scale in the agc is 1ms so even at the slowest proposed sample rate, we will be oversampling for the agc by a factor of 3,4, or more. The signal processing tools needed to do this have been in our code for a long time. The problem with all of this is two fold. It must be done in a way that the user is not troubled with worrying about it at all. It just suddenly becomes magically more efficient. This is a big software engineering job inside for the GUI maintainer (Eric). There are other places I could do this and not worry about the GUI, but I would not get feedback from hundreds of howling paying customers who demand perfection and satisfaction. Imagine how unhappy all of you would be if suddenly we broke your connection to CWSkimmer, etc. because we narrowbanded the signal. In other words, we have to roll this out in stages, gather all the complaints, fix all the things we break by doing this and then everyone benefits. Stand by, this will get tremendously better and quickly. On most of your ATOM 330 based mother boards, you REALLY need to slow down the display to 8-9 frames a second from the default 15. I find you don't lose much and you are paying much less penalty for the horribly slow Intel graphics engine. Bob Bob ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] My Flex History
Dave Gomberg wrote: At 10:01 4/29/2009, Bob McGwier wrote: the agc will begin to use approximations for sqrt(SUM (sample_mag)^2) I kinda like writing high performance approximation code, what input range do you need to handle and what error fraction is acceptable? Do you mean sqrt(sum(samples**2))??? What you wrote is simply sum(samples) I believe. I wrote what I meant. The samples are complex so sample_mag^2 is what is needed. This is best accomplished in perfect code by I^2+Q^2 where that is the real and imaginary part of the complex number. 10% error is completely acceptable. The range is variable and this is due to the agc threshold setting on the radio. 20*log(1.1) 1 dB error! This is audio presented to speaker/headphones. This is not metered, etc. So you can see we have been completely stupid in insisting on the ridiculous cost of full blown square roots, logarithms, sum(x^2) in these calculations. If you want to propose a mechanism to compute sum(Mag(x)^2) with 10^-14 to 1, not including the multiplicative factor of the length of the sum, I will consider putting it into the code after evaluation. Be prepared to accept GPL v3.0 distribution of the code and not get into trouble with your employer or other masters for having done this. I send this out to the list to let everyone know, I have absolutely ZERO NIH syndrome. If it works, I will use it. Bob ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] My Flex History
Click on Setup-Display, near center at the top. Default is 15fps. I automatically reduce this to 9fps everytime I do a new installation. Bob Kirk K6KAR wrote: Bob, With regard to your last paragraph. I have no idea how to slow down the display frames. Please enlighten me. Thanks, Kirk, K6KAR -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Bob McGwier Sent: Wednesday, April 29, 2009 12:02 PM To: Eric Wachsmann Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] My Flex History Eric Wachsmann wrote: This isn't hard to imagine given CPU benchmarks like Passmark ( http://www.cpubenchmark.net/). The Atom 330 gets 586 marks while a Q6600 (quad core) gets 2859 marks. Even the lowest end E4000 series Core 2 Duos get 1000. The Atom 330 is roughly equivalent to a P4 3.6GHz based on this benchmark. Eric Eric and I were supposed to meet yesterday online for a four hour session on the resampler. I was derailed by work (my paying day job). Shortly the Atom 330 will be overkill for this work. The cpubenchmark measures things that are inappropriate for our application and while it is relevant, it is not the whole story and by a lot. In one of my branches, and as it is perfected, moved into the test branch and then the main distribution, we will downsample the computations to the minimum needed. So for example, everyone who wants a 2.7 kHz channel will actually have everything but impulse noise (NB,NB2) running at a much reduced sample rate. The sample rate will necessarily be an integer divisor of 192000 samples per second. So the 2.7 kHz channel MIGHT be done at 3 ksps, but will certainly be done at 4 ksps or less, the exact same operations will be done but the amount of CPU required to do them will be reduced by a factor of 48 or 64 (4 kHz or 3 kHz respectively). If you want to do DRM, for example, the rate will be reduced to 16 ksps probably, etc. The complex sampling rate needs only to be larger than channel you desire. The single biggest gain for us will be in the application of the agc which is the current pig in the entire operation. Next to downsampling, the agc will begin to use approximations for sqrt(SUM (sample_mag)^2) and that will be another hug factor, so large that we will not call agc the pig any more. As soon as that is not a pig in the agc, we will upgrade the overall structure of the agc. Our current smallest time scale in the agc is 1ms so even at the slowest proposed sample rate, we will be oversampling for the agc by a factor of 3,4, or more. The signal processing tools needed to do this have been in our code for a long time. The problem with all of this is two fold. It must be done in a way that the user is not troubled with worrying about it at all. It just suddenly becomes magically more efficient. This is a big software engineering job inside for the GUI maintainer (Eric). There are other places I could do this and not worry about the GUI, but I would not get feedback from hundreds of howling paying customers who demand perfection and satisfaction. Imagine how unhappy all of you would be if suddenly we broke your connection to CWSkimmer, etc. because we narrowbanded the signal. In other words, we have to roll this out in stages, gather all the complaints, fix all the things we break by doing this and then everyone benefits. Stand by, this will get tremendously better and quickly. On most of your ATOM 330 based mother boards, you REALLY need to slow down the display to 8-9 frames a second from the default 15. I find you don't lose much and you are paying much less penalty for the horribly slow Intel graphics engine. Bob Bob ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] My Flex History
Dave Gomberg wrote: At 12:50 4/29/2009, Bob McGwier wrote: Dave Gomberg wrote: At 10:01 4/29/2009, Bob McGwier wrote: the agc will begin to use approximations for sqrt(SUM (sample_mag)^2) I kinda like writing high performance approximation code, what input range do you need to handle and what error fraction is acceptable? Do you mean sqrt(sum(samples**2))??? What you wrote is simply sum(samples) I believe. I wrote what I meant. The samples are complex so sample_mag^2 is what is needed. This is best accomplished in perfect code by I^2+Q^2 where that is the real and imaginary part of the complex number. OK, then what you are seeking is sqrt(sum(sample_magnitude^2)) ?? And you have I and Q a separate values now in the code? Or is there a complex datatype We have a complex struct data type but I and Q are accessible from the struct as the two float members of the struct. 10% error is completely acceptable. The range is variable and this is due to the agc threshold setting on the radio. I understand the range varies, I am just trying to get an idea of the possible magnitudes. Is 10^7 possible? 10^7 is not possible How about 10^-7?? Is possible. 20*log(1.1) 1 dB error! Actually, 20*log(1.1) is about 6.7 or about 8.2db, but it is less than one bel. Or am I not following you again??? I think you better try that calculator again. Log10( 1.1) is a number much smaller than 1. 10^0 = 1 and 10^1 = 10, so 10^x = 1.1 and solve for x (take log10 of both sides) gives 0.04. and 20* that is 0.8 dB. SO, 10% over the nominal value of 1 is off less than 1 dB. This is audio presented to speaker/headphones. This is not metered, etc. So you can see we have been completely stupid in insisting on the ridiculous cost of full blown square roots, logarithms, sum(x^2) in these calculations. If you want to propose a mechanism to compute sum(Mag(x)^2) with 10^-14 to 1, not including the multiplicative factor of the length of the sum, There are two problems. Do the easy one first sum(mag_squared) is needed and so is sqrt(sum(mag_squared)) for different purposes. A -120 dBm to -130 dBm signal produces a very tiny number for the sample voltage and overload occurs just north of 0 dBm, so that is 130 dB of required dynamic range for the agc to operate properly. Most people set the agc threshold higher than -120 dBm so you don't tire yourself listening to amplified noise floor at full volume. What happened to the sqrt? Are you saying the range of Mag(x) is tiny to about 1? What is the multiplicative factor, *1/n Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Flex 5000 Phantom Image on panadaptor dispaly
If you are running the code in demo mode, and it is taking in stuff from a typical sound card, that hump to the left of center is the 1/f noise - DC junk in the sound card. You can see a hint of this in some Flex 3000 and 5000 radios depending on the quality of your grounding, etc. but on noisy bands, not much. This is the reason the power spectrum is not centered. We offset from DC (0 Hz in a -Fs/2 , Fs/2 IF band where Fs is the sample rate) to avoid the degradation from the noise at the center of the passband on receive. On transmit, it makes almost no difference since it is so far down. Bob N4HY Jack Haverty wrote: My Flex-3000 hasn't arrived yet, but I see this same phantom image behavior running PowerSDR 18.0 in demo mode. It also occurred in prior version 16. I figured I'd wait for the actual radio since it might be an artifact of whatever demo mode does to create the band-noise. It looks like just a fairly steady carrier at the position you describe, and when you center on it, it's not there, but pops back up a fraction of a second later at the offset position. /Jack Haverty Point Arena, CA On Wed, 2009-04-29 at 20:44 -0400, Tim Ellison wrote: When ever anyone has an issue, it is imperative that you tell what version of PowerSDR you are using because without that info, there is no reference point to start from. -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Randy Emerzian Sent: Wednesday, April 29, 2009 8:31 PM To: flexradio@flex-radio.biz Subject: [Flexradio] Flex 5000 Phantom Image on panadaptor dispaly Hello, I seem to have a phantom image of a modulated signal just to the left of center. When I click on it to listen the dispay re-centers, and I hear no audio in any mode. The Image re-apeard at the same location ( two lined left of center) no matter what freq I am centered on. Any Ideas? Randy - KI6VAU ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. You don't need to see the whole staircase, just take the first step., MLK. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] What happened to the display averaging in 1.18.0
The area below the noise threshold on the panadapter is filled. Tim Ellison wrote: Me thinks it is the Histogram display -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Don Sachnoff Sent: Sunday, April 19, 2009 7:01 PM To: flexradio@flex-radio.biz Subject: [Flexradio] What happened to the display averaging in 1.18.0 What is fill panadaptor? Don - kx9q ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] PowerSDR S-Meter Power Readings
The meter is calculated on a single filter with a large signal in its path and for the rest of the time, it is assumed that noise is negligible compared to the tones in the calibration. This assumption appears to break down near the noise floor if your measurements are correct. This is useful information. I will be in Austin Friday - Wednesday and we will simply make several measurements to see what gives. I do clearly recall making the meter measurements at all sorts of levels with my (calibrated) 8640B (as accurate as that can be with its analog level set) and it was definitely close but I cannot state emphatically that it was not (3.1 - 1.8) = 1.3 dB off since we just didn't have test equipment capable of that accuracy then. Bob Clay W7CE wrote: Hi Bob, It's certainly possible that I'm doing this wrong, so let me explain my procedure and then you can tell me if I'm making a mistake. All of the following is performed on 6M at 50.200 MHz with a 50 ohm termination connected to antenna port 1 and the bandwidth set to 500 Hz (mode CWU). Also, the multimeter average time is increased to 5000 mS and the Digital Refresh is increased to 2000 mS. The external preamp I am using is an ARR P50VDG preamp with a spec'd noise figure of 0.5 dB and a measured gain of 26 dB. Gain was measured on an HP 4396A Spectrum/Network Analyzer and confirmed using the ADC L and ADC R meters. First, I measured the receiver noise floor using the RX1 meter set to Sig Avg. With the internal preamp turned on and no external preamp, the average noise level is -125.0 dBm (the value fluctuates some, but seems to be centered here). This indicates a receiver noise figure of 22.0 dB. Now if I enable the external preamp the average noise level decreases to -143.9 dBm, corresponding to a receiver noise figure of 3.1 dB. However if I do the math, adding my preamp and assuming connector, coax and internal relay losses of 0.3 dB in addition to the 0.5 dB preamp noise figure, I should see a receiver noise figure of 2.0 dB. For the receiver noise figure (including external preamp) to be 3.1 dB the external preamp noise figure and passive losses would need to add up to 2.2 dB which is much larger than I would expect. Next, I computed the receiver noise figure by measuring the receiver MDS using an external HP RMS volt meter at the speaker connector and the HP 4396A as a signal generator. Without the external preamp the measured MDS is -126 dBm and with the preamp the MDS is -145 dBm, corresponding to noise figures of 21 dB and 2 dB, respectively. If I do the math, adding my preamp in front of a 21 dB NF receiver, should yield a system NF of about 1.8 dB, so the measurements agree closely with the math. Based on the results, my MDS measurements (using the voltmeter) with the preamp enabled are more consistent with the calculated values than those using the internal meter. I suspect that measurements this close to the noise floor will not be as accurate and that I'm asking too much. I'm certainly not complaining though. The accuracy of the metering rivals that of my HP spectrum analyzer on measurements that I've made from -100 dBm to -30 dBm. 73, Clay W7CE -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] PowerSDR S-Meter Power Readings
You are not reading this correctly. The power displayed on the meter is integrated power in the receive filter, just as it should be. The computation is accurate to much more than 0.1 dB irrespective of what the display is doing. But as in all cases of such compromises, it is designed to work for the use case of 99.9% of amateurs (and others) and that is to measure the strength of the signals that are well above the noise floor. That is how it is calibrated. I do not believe your 1-2 dB number and will not without demonstration. You provide proof, I will believe and see what we can do. Bob N4HY Clay W7CE wrote: I've been looking through the PowerSDR code to see how the RX meter signal strength is computed. Based on what I've observed it appears to based on the maximum signal found within the currently selected bandwidth. So if I'm receiving two CW signals within the current bandwidth, it will show the strength of the stronger signal. Am I reading this correctly? If so, I'd like to add a new RX meter option that displays the true RMS power for the selected bandwidth and increases the display resolution to 0.1 dB. I think this addition will allow PowerSDR to accurately display the noise floor of the receiver when the antenna port is terminated with a 50 ohm load. The current implementation seems to give close, but not totally accurate results (my results seem to be off by about 1-2 dB) I have Microsoft Visual Studio .net 2003 and can build the source, but would appreciate it if one of the PowerSDR gurus could help point me in the correct direction in the source code. I think I've found most of the code, but I'm not sure where the average signal is computed. Thanks 73, Clay W7CE ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Earth Venus Earth communications at
I am really happy to tell everyone of a terrific SDR experiment. HI. Our colleagues in AMSAT-DL have been working towards demonstrating several of the pieces to allow for interplanetary communications in the event the Phase V mission to Mars comes to fruition. A team consisting of many well known amateurs including Wolfgang Büscher (DL4YHF), Freddy de Guchteneire (ON6UG), Hermann Hagner (DK8CI), Michael Lengrüsser (DD5ER) , Karl Meinzer (DJ4ZC), James Miller (G3RUH), Max Münich (DJ1CR), Hartmut Paesler (DL1YDD), Achim Vollhardt (DH2VA). The AMSAT-DL web page is here: http://www.amsat-dl.org//index.php?option=com_contenttask=viewid=166Itemid=97 and the English press release is here: http://www.amsat-dl.org/pic/gallery2/main.php?g2_view=core.DownloadItemg2_itemId=7561 In the photographs attached to these pages and press releases, one can see the SDR-IQ and Spectrum Lab. Congrats to RFSPACE (http://rfspace.com/Home.html) and Wolfgang DL4YHF (http://freenet-homepage.de/dl4yhf/spectra1.html). I hope everyone joins in congratulating this team on their multiple year effort and outstanding achievement. Bob McGwier N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Flex 5000 wins science fair
No kidding. That is awesome! Bob Tim Ellison wrote: Brian, What a wonderful and distingished accomplishments for your students. I know you are very proud of their achievements and the recognition of their hard work. We need more up and coming technologist these days. Please give them a big atta boy and girl from the entire Flexer community. -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Brian Lloyd Sent: Sunday, March 22, 2009 12:17 AM To: FlexRadio List Subject: [Flexradio] Flex 5000 wins science fair OK, well maybe the radio didn't quite win the science fair but the student who did, Michael Binon, KI6QOC, used a Flex 5000a to collect data on four different wire antennas he constructed for a backpack QRP station built by his classmate, Joshua Fournier, KI6PJW. Michael's project took 1st place and Joshua's took 2nd place in the Engineering category for grades 6-8 of the Sacramento Regional Science and Engineering Fair. A third classmate, Frankie Moirao, KI6QYS, received 3rd place in the Mathematics and Computer Science category for his RF data link operating in the 70cm band. Two other students, Noah Cudd, KI6UHT, and Teri Nittler, KI6QLQ, also received awards. Noah took 1st place in the Biology category for his study of greenhouse gasses. Teri received a special award from the Society of Professional Engineers for her study of the aerodynamics of roofs on houses in high winds. Yeah, I am *WAY* proud of my students. Maybe Flex can get some milage from the F5K being used in a winning science-fair project. -- 73 de Brian, WB6RQN/J79BPL Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Call for talks
My last official act as chair of ARRL SDR committee was to agree to chair the SDR FORUM at the Dayton Hamvention. I solicit talks from individuals, groups, or a business. The talk must be about SOFTWARE radio. I encourage Elecraft, Flex, TAPR/AMSAT, Quicksilver and others to participate. I think this is likely to be the last year as through the efforts of individuals, groups, and companies, we are entering mainstream territory. Let me hear from you if you are interested. I will pursue invited talks separately. Bob McGwier ARS N4hy ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] [SPAM] Re: FLEX-3000 OOB blog
This did not get answered. N is 100 for the Atom 330 when I am done where N is limited to software receivers running in parallel. Bob Simon (HB9DRV) wrote: What's N for the various Flex radios? (Gremlins ate the formatting in my previous post.) Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Lux, James P The conceptual model is like you have N tunable block converters... ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] [SPAM] Re: FLEX-3000 OOB blog
You are correct. Lux, James P wrote: Bob, I think you mean M 100.. N is the number of RF interfaces, and is either 1 or 2 for the FlexRadio product line (in a single physical box).. One could make N bigger by getting multiple boxes. You also made the important distinction between Receive boxes and Transmit boxes. Just as one can have multiple virtual receivers within one block of RF, one can also have multiple transmitters within one block. Yes, you could DOMINATE a CW contest by having an intelligent robot handle the Qs on multiple frequencies at once, both receiving and sending. An interesting philosophical question arises.. Say you have a 200kHz wide Rx and Tx data stream from a single physical box. You have two, three, half a dozen operators, each tuned to a different place within that 200kHz band. They can conceivably operate totally independently, and could do CW, PSK31, and SSB all at the same time. The mind boggles at the rules arguments that will fill the blogs for decades to come. With multiple RF boxes, perhaps geographically dispersed and interconnected by a suitable network, a single “station” could have a dozen “on the air” presences. On 3/19/09 2:37 PM, Bob McGwier rwmcgw...@gmail.com wrote: This did not get answered. N is 100 for the Atom 330 when I am done where N is limited to software receivers running in parallel. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] W2RF branch with 3.4.0.4877?
This should happen soon. I am attempting to bring the new receive IQ adaptive algorithm into the main line while allowing the old TX IQ to work for the time being. The new TX IQ is more difficult and will simply not be possible with full duplex operation and then only with the 3000 and 5000. Further, it is made even more difficult by the need to listen with the receiver. The same receiver that might be in use in split, full duplex, etc. operation. It is complex and too risky to just shove out the door on day one. Bob Edward Russell wrote: I am waiting for the test branch to stabilize before I synchronize. 73 Ed W2RF -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex- radio.biz] On Behalf Of Robert Bajuk Sent: Thursday, March 19, 2009 5:01 PM To: flexradio@flex-radio.biz Subject: [Flexradio] W2RF branch with 3.4.0.4877? Hello New to Flex... happy owner of new Flex-5000A, not on the air yet, preparing PC and installing drivers and software to get radio on the air I noticed the the last flex driver is now 3.4.0.4877... I just installed the driver and it looks fine with PowerSDR 1.16.2 - BTW how to save sample rate in BUS to 96 kHz, it works OK but when I reset PC it gooes back to 48kHz... Another question I tried the the last W2RF branch and I can not get it work with the new 3.4.0.4877 drivers? PowerSDR can not communicate with Flex-5000... Just wonder what I am doing wrong or is it just the new driver issue? 73 Robert, s57aw ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex- radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Upgrades and bug fixes to test
The TX is next. Tim Ellison wrote: It would be interesting to see the same analysis done with the Compander in various configuration setting (using the higher compander radios of the DX mode) -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Ahti Aintila Sent: Wednesday, March 18, 2009 8:40 AM To: Phil Harman Cc: FlexRadio Subject: Re: [Flexradio] Upgrades and bug fixes to test Hi Phil and Bob, 2009/3/18 Phil Harman p...@pharman.org: Hi Bob, Just tried the latest test code. A HUGE improvement in the AGC performance - sounds just great - many thanks. Now, about the speech compressor.. :) ... or clipper?! See these interesting measurements of K3: http://www.cliftonlaboratories.com:80/elecraft_k3_speech_processing.htm 73, Ahti OH2RZ ___ F -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] IQTest mistake
Before now, flexradio and flexradio developers (just like that) were side by side in my Address Book. Now they read FLEX USERS and Flexradio DEVELOPERS and I hope not even I can make this mistake again. My last email note was NOT intended for the former, it was intended for what we have called DEVELOPERS only. Nothing else is possible for this kind of development. I cannot even think of good words to explain my contention that this is so I will just state a fact. I am the developer, doing this my way to maximize my efficiency as I see it. For any misunderstanding this has caused or causes, I apologize. The new RX IQ algorithm will work (as it does now in the IQtest branch) for ALL of our radios. The TX IQ development planned will work with all radios. But I need to run this by proven testers whose analysis I can read, understand, and not deal with user questions. This is not snobbery, it is simply that I have 3 hours on a good day to do this work. I have to do it with people I can guarantee myself I can communicate with from the outset. PLEASE, if you don't understand what that was all about, you are not one of the testers and please don't take up Dudley's valuable time (any more than I have wasted). We will have this altogether for everyone SOONER rather than later if we follow my slow roll out plan to proven testers. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Upgrades and bug fixes to test
In the test branch, which is being made ready for the roll out of the 3000, I convinced the powers to allow me to make some changes which have been fleshed out in one of my branches. SVN: 2797 in the test branch Major reorganization of the receiver flow graph. ANF and NR redone. BIN works everywhere, all the time. PAN on receivers done correctly, MultiRX and RX/RX2. AGC put near last in RX chain resulting in much (MUCH) lower total harmonic distortion. SAM much improved. ANF and NR are before AGC so a loud interfering tone, suppressed by ANF, will not capture AGC. PLEASE TEST. 73's Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] New Image Suppression Algorithm
Please download and test the new RX (ONLY) new image suppression algorithm that pretty much completely eliminates this as a topic for conversation in the DttSP, Flex, etc. world. The mathematics has been in the DttSP repository at cgran for some time. BUT, an algorithm does not exist in a vacuum. It needs intelligent agents applying it. That has taken longer and was done with Eric Wachsmann. I could not be happier with the result SO FAR. There are steps to take that must be taken and this is the beginning of the end of IQ as a topic, not the end itself. branches/n4hy/iqtest/bin/Release gets the executable. THERE IS NO CALIBRATION FOR THIS. It is automagic. There may be some tuning that needs to be done to the parameters governing its use but these are completely outside user control. We are asking for your input. WARNINGS: in this same branch, I have ruined the current wreckage of ANF and NR while working to understand what is going on. I am re-doing the block LMS algorithms and that will be the standard when done. You CANNOT tune the TX image (yet) while this is running. That will come soon. My explanations and other long winded blatherings are here: http://n4hy.blogspot.com/2009/03/image-rejection-along-road-less.html 73's Bob N4HY -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Couple questions about OptionWindow Filtering Algorithms
The windows change ONLY for display. In a act of I know better than you do, the filters for the bandpass/demodulation are all blackman-harris. fred harris, a friend and colleague, told me if I switched he would disown on me. ;-) These filters are so long that there is actually very little difference in the windows for audio purposes. Bob FireBrick wrote: There are algorithms from Blackman to Parzen. To tell the truth, I haven't a clue about them. I can't honestly see a difference in the filtering/noise reduction etc. etc. Question 1. how do they differ? Question 2. for a guy like me, living in a high noise urban setting who's interests are contesting and dxing, Which of these would be most appropriate? Question 2. is one better against certain types of noise than others? I've read the manual, but I really don't understand what it says. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] A shameless plug
Keep it up. blogspot has mostly made this trivial. Bob Lee A Crocker wrote: Actually I never did plug this blog before. I never really tried this before and I wasn't sure how hard it would be to master. It has turned out to be not very hard. I know enough HTML to keep me out of the ditch. I came up with the idea when I was hanging around the Flex booth at Orlando Hamcation, that maybe an ongoing commentary on user experience my be of use to introduce others to the SDR experience. Flex is a lot of my expeirence so I spend a lot of time writing about Flex. I'm not really interested in the politics of it all, or the Ford v Chevy aspect of this as much as clearly imparting some idea of what its like to own and use SDR as compared to legacy radios. I am hoping that some who have particular experiences such as contesting or using PowerSDR as the center of a VHF station, or one of you digital aficionados might write something about how SDR has improved their operating. I'm basically a boring old low band CW DXer with a few buddies on 75 SSB. I reserve the right to edit what ever I get not to change the prose as much as to make the blog flow. So I do encourage you to take a look 73 W9OY w9oy-sdr.blogspot.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Vista Tweaks
Boot: http://winhlp.com/node/150 Operation: http://winhlp.com/node/409 YMMV read the warnings, caveats, etc. If you don't know what a multicore is, you have no business fooling with this at all until you do. -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Intel ATOM WHOOAAAAA Nellie
Many of us have and love the Intel ATOM 330 boards we have. I have 3 of them! I want to ask those who do not see an immediate need for them but are thinking about getting one for SDR purposes, I want to tell you that better things are arriving as always. The Nvidia ION will address almost 100% of the few gripes with the D945GCLF2 and D945GCLF (Intel Mobo) computers. The intel graphics chip, 3D/2D acceleration, is okay, but it is not great. The D945GCLF2 addressed the desire for 64 bit OS, but we still had pretty slow memory supporting slow DDR2. Unhappy with the PC VGA connector on the Intel? The Nvidia ION has HDMI output and 7.1 audio! The Nvidia ION address both of these shortcomings. The Nvidia ION has a memory of Nvidia's very impressive GPU's with the GEO Force (9300/9400) family. It is also supports DDR3 memory. Both of these factors will represent MAJOR improvements in the performance. Please, if you have not already purchased the Intel ATOM motherboards, hold up a bit. There is nothing wrong with the $80-$90 motherboards you currently have but these new ones will represent bit steps in the right direction. HOWEVER, for those folks who want to build an small board computer for supporting the Flex family of firewire devices, the Intel motherboards are your only choice. You need the PCI slot to get the firewire support. For those of us who want to support USB 2.0 or better yet, GigE, the Nvidia ION will provide more IO ports than the Intel motherboard and has the other advantages already mentioned here. You will need an external drive case to hold the drives as the eSata ports are on the back of the motherboard for Nvidia ION. So, no firewire needed? better memory and graphics needed? HDMI needed or desired? Wait for the Nvidia ION motherboards to become available to you in the second quarter of this year in desktops and motherboards. The ASUS N10Jc notebook are, or soon will be available. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. Twitter:rwmcgwier Active: Facebook,Myspace,LinkedIn ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] vs2008 branch question
All of those are very good questions and we are busting our humps to answer them. They will not necessarily involve products from the coastal regions of Washington state. I want to demo stuff by Dayton. That is a large commitment, larger than most know and I am not the boss on what gets demo'd since I have development partners who are carrying a larger piece of the load than I am by a lot. We are reaching a tipping point on deciding what will be released in alpha code but not when. Bob Paul Shaffer wrote: The VS2008 is an attempt to just get the code to run in an x86_64 machine with native code and to do some immediate dsp development to add some adaptive signal processing routines of high interest to enhance performance. We are not doing long term development on this console. We are already trashing that code and starting over from the ground up. Thank you for answering. This begs the question... what development system/language/framework are you using for the new radio console? What is ETA for alpha version, etc.? -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] vs2008 branch question
I am almost with Eric. I see no performance hit AT ALL on the Flex 5000 but I think you are using a Delta 44 and another SDR hardware so I cannot comment. I am using for the development a P4 3.4 GHz hyperthread, socket 478. It is pretty ancient. The VS2008 runs with less CPU% than the 2003 version and I have no interruptions at all. The VS2008 is an attempt to just get the code to run in an x86_64 machine with native code and to do some immediate dsp development to add some adaptive signal processing routines of high interest to enhance performance. We are not doing long term development on this console. We are already trashing that code and starting over from the ground up. Bob Eric Wachsmann wrote: Paul, They (M-Audio) changed the DLL name in the latest driver. You can copy the file from the older version and it works fine (or just use the older version driver as there were no known issues with it). I sent you a separate email offline regarding SVN. FWIW, I don't notice much of a performance hit on my development machine here (Q6600, XP SP3, 3GB) with the VS2008 version. Eric Wachsmann FlexRadio Systems On Thu, Feb 5, 2009 at 2:31 PM, Paul Shaffer fl...@cyberplasm.com wrote: .../PowerSDR/branches/n4hy/VS2008/Source This version seems to run a lot better than mine, but I have been working with the 1.14 codebase. The only fix for my system is to comment out the code in InitDelta44(). All this does is set the -10db level for the inputs in the delta-44 control panel. I just have to remember to do that manually. -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] vs2008 README_NOW.txt
If I had any, I never would have started down this road and I certainly would have gotten off before HALF A DECADE had passed! Seriously, use this at your own risk. We are really hanging it out there with this, trying all sorts of stuff with the new IDE. Bob FireBrick wrote: If I had any sanity, I'd have stayed with my DX100 and HQ101. Compre Vous? LOL -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] CW Spot button
You know Dave, I agree. We have had the code in DttSP to supporta spotting tone for nearly 4 years and have never turned it on once in PowerSDR. Don't let me forget. Bob W5UN wrote: The PowerSDR sure could use a CW spot button. It would be quite helpful to me. 73, Dave, W5UN www.w5un.net ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] VS2008 branch
Eric added ADODB to the repository for those having problems with VS2008 version. Apologies. Bob -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Intel Atom Hype
http://v1.moblin.org/pdfs/TheAtomProcessor.pdf -- (Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Beta Testers Needed
Eric did not make clear that this is built using Visual Studio 2008. You will need .NET 2.0 installed and it will barf without it. Later I will make a branch, build, and upload to branches/n4hy/VS2008_64 a 64 bit version of the code projects and we will sort out the difficulties in that folder. This code will be built on XP64 for the 64 bit target and will need the 64 bit driver which we are testing which will enable the code to run on Vista 64. More on this soon. There are no major changes in the code other than making it work with .NET 2.0 and VS2008. VS2008 is about a million times better than VS2005. Its migration tool is much improved. Bob Eric Wachsmann wrote: Beta testers, We're looking for a few (well, actually, the more the merrier) good testers to help us test a beta version of PowerSDR. This version can be accessed on the SVN server under the branches/n4hy/VS2008 folder. General comments are welcome here, but bugs should be filed on the Bug Tracker tool on our support page (http://support.flex-radio.com http://support.flex-radio.com/ ) in order to ensure they can be tracked and eliminated efficiently. Thanks in advance to all who choose to participate in making our radios better over time. Eric Wachsmann FlexRadio Systems ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] [Fwd: Re: Longwave Reception with Flex 5000]
For correct performance I would suggest enough to cover that band in half octaves. The filters get narrower and more difficult to build as you get lower in order to achieve this if you insist on passive filters (including almost certain higher insertion loss). It is the only way to approach this seriously. Once you get low enough where the RF is high speed audio, I don't know why we don't consider active filters as much easier and preferable. We are not really dealing with large signals down there and adequate filtering and sensitivity seem to me to be more important than huge IP3. Remember, these are thoughts, not directives. I am muttering out loud. Bob N4HY Chris seeber wrote: Harry, You need some kind of external low pass / band pass filter. If you get them, it works great with the filters installed in the 5000's RX in / out loop. I purchased a low pass filter from W1VLF that works really well. But to cover the entire band, you would probably need two or three of them. Good Luck. 73 Chris, KA1GEU -Original Message- Message: 12 Date: Sun, 25 Jan 2009 09:40:36 -0600 From: Harry Williams willisw...@msn.com Subject: [Flexradio] Longwave Reception with Flex 5000 To: flexradio@flex-radio.biz Message-ID: col117-w80c680f776e6cb7756336884...@phx.gbl Content-Type: text/plain; charset=iso-8859-1 Hi, I am wondering if any of you have attempted to use the Flex 5000 to receive longwave stations below 500KHZ. I have listened down in that range and the only thing I hear is BCI from the stations in the US broadcast band. I assume a filter is needed to reject the BC band interference. 73, Harry W0LS -- -- ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. It is human nature to think wisely and act in an absurd fashion., Anatole France. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] [dttsp-linux] ATOM update
I am running all of that on the Atom 330 (D945GCLF2 mobo) with the addition of Windows XP64 and it is flawless. I had an XP64 disk that has not been installed on a system in two years and it needed an hour to do all of the Windows updates which tells you how old it was. Everything works flawlessly. The big discovery that Intel made with the multiple core technology is that modern operating systems can be single threaded and need a huge clock, gobs of power, and hard to build transmission lines or they can build many slower cores to run in parallel and then have high demand jobs basically get a CPU to themselves rather than deal with locks of context switching, etc. and overall, be much better off. It has absolutely revolutionized the computer industry at the consumer level and has made seriously capable computers dirt cheap. This is NOT to say this is one size fits all. I am also building an Intel I7 extreme machine where the cost of the motherboard is twice what I paid for the entire Atom 330 computer. It is being built so I can effectively use Nvidia GPU's (I have a two GPU Telsa and will have two more on the graphics card and SLI bound to the Tesla) for DSP supercomputer. This is also not for everyone because it will cost $2500 without the Tesla. I am extremely happy that Intel brought all of this out and extremely grateful to Phil Covington for suggesting this to Frank and I. I am happy to have had the time to go through all of the necessary pain to get everything going to make it easier for everyone else to follow. I do believe we are approaching, and rapidly, the time when an all SDR setups will be comodity priced and every man can afford them and have startling capabilities. This is my dream and goal and I thank EVERYONE who follows all of this wandering we do because without the interest and support of this experimenter and user community, we would not make large progress. Whitespace rules and large scale integration and many way SMP cores at reduced power and more will push all of us in this direction whether we want to go there or not. I am happy we are. 73's Bob Paul Beckmann wrote: Just a short status note: The ATOM 330 box is up with GRUB, XPpro32SP3, and Ubuntu 8.10 64-bit. I installed PowerSDR 1.16.1, .NET 1.1, the FA66 drivers, and a 1394 board on the box today and hooked up the SDR-1K. Under 32bit WinXPpro, the CPU meter was running between 10-20%, all modes tried. CW was flawless at 60ms break-in keying delay. This is a HUGE difference for me in the operation of the SDR-1K. It just shows how SDR really depends on horsepower on the computer side to make it all work. The lock-ups, noise, poor CW performance, pops, etc. were all do to demands exceeding the capability of the old 1.8Ghz P4 system. Now that I have a functioning SDR station back up, on to playing with Ubuntu, HPSDR, and all the Dttsp goodies! 73 thanks for all the help! --Paul, wa0rse P.S. Eric has told us that PowerSDR will run the 1K and 5K under WinXP-x64 fine, just *not* /Vista64/. I'll likely stay with 32-bit for the time being. __._,_.___ Your email settings: Individual Email|Traditional Change settings via the Web http://groups.yahoo.com/group/dttsp-linux/join;_ylc=X3oDMTJnaDQzMGZrBF9TAzk3NDc2NTkwBGdycElkAzE2NTgzMTU5BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNzdG5ncwRzdGltZQMxMjMyMDM5MTg4 (Yahoo! ID required) Change settings via email: Switch delivery to Daily Digest mailto:dttsp-linux-dig...@yahoogroups.com?subject=email%20delivery:%20Digest | Switch to Fully Featured mailto:dttsp-linux-fullfeatu...@yahoogroups.com?subject=change%20delivery%20format:%20Fully%20Featured Visit Your Group http://groups.yahoo.com/group/dttsp-linux;_ylc=X3oDMTJlOWhhdW5vBF9TAzk3NDc2NTkwBGdycElkAzE2NTgzMTU5BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNocGYEc3RpbWUDMTIzMjAzOTE4OA-- | Yahoo! Groups Terms of Use http://docs.yahoo.com/info/terms/ | Unsubscribe mailto:dttsp-linux-unsubscr...@yahoogroups.com?subject=unsubscribe __,_._,___ -- ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. “Order and simplification are the first steps toward the mastery of a subject.”, Mann ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Windows install out of order on dual boot machine (Intel ATOM upgrade to XP64)
I had Windows XP on my Atom and I upgraded to Windows XP64. I had Ubuntu in a second partition. I had installed Ubuntu 64 after Windows XP but before Windows XP64 on the ATOM330 computer. How does one do this? Once done, it is utterly trivial. When you install a version of Winblows and it overwrites the master boot record (as it did in the case of my upgrading to XP64) you need to reinstall grub. You have to pay attention but it is straightforward. Boot the Ubuntu LiveCD you used to install. On applications, accessories, click on terminal and when it is open run sdr bash This will make you root. Let us assume your machine has identified the disk as /dev/sda. Run fdisk /dev/sda and then type p and hit return This will print the partition table. Your root directory (assuming you put everything into one directory) will be in the list. Suppose it is third in the list (you DO count any extended partitions as one in the list, you just count down until you find the root partition). You start counting 0,1,2, As I said, suppose it is third in the list at position 2. In this position, assuming we are talking about drive a (in windows, it is called C by default) this will be /dev/sdaN where N is some integer. in the terminal window, type grub this will give you a grub shell prompt grub This will be implied from here until the end. root (hd0,2) (hd0 if your drive is sda, hd1 if sdb, etc.) setup (hd0) you will get data back if it finds the /boot/grub/menu.lst and it will tell you if you succeed or not. quit you are done. Reboot Remember, if this did not work, nothing is lost. You can boot the windows and repair the master boot record or if the grub menu.lst is faulty you can edit it Go into the LiveCD again and bring up a terminal mkdir /mnt/sysimage mount -t ext3 /dev/sdaN /mnt/sysimage where N is the integer mentioned above when you printed the partition table cd /mnt/sysimage/boot/grub and you can edit menu.lst with gedit or vi or some other fave. Good luck, Bob N4HY -- ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. “Order and simplification are the first steps toward the mastery of a subject.”, Mann ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] [dttsp-linux] Windows install out of order on dual boot machine (Intel ATOM upgrade to XP64)
No, very carefully and slowly follow the instructions I gave you. The drive is still there UNLESS you elected to wipe the drive clean in the Winblows install. In ubuntu lived, up and running bring open a terminal menu Applications-Accessories-Terminal When the window is open, in it type sdr bash you will be root type fdisk /dev/sda and then hit the p key and enter. Copy the listing and send it. Bob Paul Beckmann wrote: Hi, Bob. When I booted from the Ubuntu CD and selected just try it out without changing your computer, sdr was not installed. Should I have to reinstall Unbuntu 64 again? --Paul, wa0rse On Wed, Jan 14, 2009 at 8:06 AM, Bob McGwier rwmcgw...@gmail.com mailto:rwmcgw...@gmail.com wrote: I had Windows XP on my Atom and I upgraded to Windows XP64. I had Ubuntu in a second partition. I had installed Ubuntu 64 after Windows XP but before Windows XP64 on the ATOM330 computer. How does one do this? Once done, it is utterly trivial. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] VAC
Just install it again. There is no license checking. If there were, he would have it stolen a lot less. Bob ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. And yes I said, yes I will Yes, Molly Bloom -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of w8...@yahoo.com Sent: Thursday, January 08, 2009 11:08 AM To: flexradio@flex-radio.biz Subject: [Flexradio] VAC Hello All, Have new computer and need to know how to move VAC from old box to the new. Thanks in advance. K8JK Art ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] separate VAC's
It is not now possible. This and many other things of similar ilk are going to be much easier in the new code. Bob ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. And yes I said, yes I will Yes, Molly Bloom -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of W5UN Sent: Saturday, January 03, 2009 3:16 PM To: flexradio@flex-radio.biz Subject: [Flexradio] separate VAC's Happy New Year everyone. What I would like is separate VAC's for RX1 and RX2. I would use VAC1 2 pair to drive WSJT from the main RX/TX (as I now do), and use VAC3 4 pair for RX2. This would allow me to run a second instance of WSJT that would receive its input from RX2 via VAC3. The net result would be that I could use the primary instance of WSJT to receive from my horizontal EME array, and TX on both the vertical and horizontal array, while the secondary instance would be for receive only from my vertical EME array. If this is now possible, please let me know. Dave, W5UN ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] [Discuss-gnuradio] Intel Atom is NICE.
And GPU's are going to become commodity priced quickly and possibly even move into the GPP and replace older ways of doing floating point. With Nvidia CUDA, you can write code for your GPP, call GPU with intrinsics to get pretty quick payback while a better longer term strategy is worked on. The future of really hard to program heterogeneous/not symmetric multiple core processors, irrespective of how great the bandwidth is, I don't think is looking all that rosy. It simply cannot take months and months to get speed to make the processor pay or the cost per flop, when ALL COSTS are amortized (expensive people, etc.) begins to look bad. Bob ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. And yes I said, yes I will Yes, Molly Bloom -Original Message- From: Newman, Timothy [mailto:trnew...@vt.edu] Sent: Monday, December 29, 2008 10:05 AM To: Marcus D. Leech; Bob McGwier Cc: hp...@lists.hpsdr.org; q...@yahoogroups.com; FlexRadio@flex-radio.biz; discuss-gnura...@gnu.org; tim.newman...@gmail.com Subject: RE: [Discuss-gnuradio] Intel Atom is NICE. There are many more ways than just lumping everything onto a single GPP. A good example is a recent thread on the GNU radio mailing list where the poster is using the USRP2 as a standalone radio with no PC. Pushing key elements to other reconfigurable processors, e.g. the USRP2 FPGA, will greatly ease the burden of the GPP. My point is that big iron isn't always necessary if you're willing to put some work into distributing the work load to other processors (a major research issue currently). Tim -Original Message- From: discuss-gnuradio-bounces+trnewman=vt@gnu.org [mailto:discuss-gnuradio- bounces+trnewman=vt@gnu.org] On Behalf Of Marcus D. Leech Sent: Monday, December 29, 2008 8:14 AM To: Bob McGwier Cc: hp...@lists.hpsdr.org; q...@yahoogroups.com; FlexRadio@flex-radio.biz; discuss- gnura...@gnu.org Subject: Re: [Discuss-gnuradio] Intel Atom is NICE. While I can heartily agree that for the expansion of SDR into the consumer space, you want it to run on low-power processors, etc, I can't agree that for most operations you don't need a high-end CPU. For example, 802.11 at anywhere approaching 802.11b bitrates needs some serious iron, and yet in our world (the world of SDR geeks), wanting to build SDR/GnuRadio-based 802.11b implementations seems a fairly common goal. In my work in radio astronomy, I've found that despite the relative simplicity of the basic functions my software provides--full-bandwidth spectral display, and total power, for one or two channels, big iron is necessary. I recently upgraded to a quad-core Q6600 to replace a dual-core Pentium D 940. The quad core loses against the dual-core because of a difference in maximum clock speed. I can run the D 940 at 3.2Ghz forever, and it can process a full 8Mhz of dual-channel, complex bandwidth. The Q6600, on the other hand, is unstable above 2.85Ghz or so, and can't sustain more than about 5.3Mhz of dual-complex-channel bandwidth without incurring massive USRP overruns. Despite the wonderful new multi-threaded Gnu Radio framework, it seems that at least one of those threads really needs as many MIPs as the processor can throw at it, because it has to keep up with a real-time data source. Any time you're dealing with having to suck in (or send out) as much bandwidth as the USRP can tolerate, and *actually doing something* with the entire bandwidth, you need ManyMIPS(tm). Which means spending $$$ (although, my dual/quad-core system was much less than the $1000.00 you quote above). -- Marcus Leech Principal Investigator, Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org ___ Discuss-gnuradio mailing list discuss-gnura...@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] LMS ANR and NF
I have changed the way the LMS automatic notch filter and noise reduction filter is tamed. The taming of it was MUCH too aggressive (FIFTY TIMES) . This effectively stopped if from reaching a good point. I noticed this as we were working on other new things. I am anxious to get some feedback. It is in the test branch. You may need to change your settings to taste and the gains will almost surely need to be lowered. Bob ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. And yes I said, yes I will Yes, Molly Bloom ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Gee! Now we are supporting Wonder Radio clones here
It would indeed be just that simple if the Wonder Radio were not an SDR-1000 knock off. You don't hear whining about the Elecraft k3 using PowerSDR to get Panadapter support for example. The offense is not using PowerSDR but other sins. Bob ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. And yes I said, yes I will Yes, Molly Bloom -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Richard Stasiak Sent: Tuesday, December 16, 2008 6:30 PM To: Duffy Cc: FlexRadio@flex-radio.biz Subject: Re: [Flexradio] Gee! Now we are supporting Wonder Radio clones here Hi Duffy A comment regarding your post: I didn't know that owning a Flex piece of hardware was a prerequisite to getting help from the amateur community. I for one have been the beneficiary of help from Luis CT1DMK in the past on a matter completely unrelated to SDR. He is very generous with his expertise. I'm sure all of us get assistance once in a while from a number of sources. Sometimes its just nice to help someone out. 73 Rick ve3mm On 16-Dec-08, at 5:25 PM, Duffy wrote: I was wondering why the post from Luis Cupido CT1DMK replied he was using a sdr1000 like hardware when asked if his problem, asked here, was a 1000 or a 5000 radio. Went over to the Yahoo Wonder Radio (sdr1k indian clone) site and guess what. Here is Luis postin about his Wonder Radio and the problems running power sdr software. I guess he at least was truthful cuz he said that he was running a sdr1000 like setup . But boy it takes some balls to come here and ask for support for free when you never even purchased the hardware , new or used, to run that free software. Maybe I'm not aware that ol Luis had sent a some money in to Flexradio to let him get supported. YEAH RIGHT !! Duffy NA6MM ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Sensitivity
Which is why I do my measurements for that kind of sensitivity in the shield room at my University of Maryland office or at our lab in Bowie, Md. In addition, the phase noise leaving the 8640B, especially if you have the reverse power protection is pretty ugly. Bob ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. And yes I said, yes I will Yes, Molly Bloom -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tayloe Dan-P26412 Sent: Wednesday, December 10, 2008 5:26 PM To: Lux, James P; Jon Maguire; FlexRadio Reflector Subject: Re: [Flexradio] Sensitivity When I make measurements on my homebrew receivers in the -136 dBm range (using an HP8640B), I definitely notice a time of day sensitivity variation. I have chalk this up to external atmospheric noise (20m/30m) bleeding through the coax. I understand coax shielding is only good for ~30 db of attenuation. I just say this to affirm that making sensitivity measurements on very sensitive receivers with out a shielded cage can be a bit difficult. - Dan, N7VE -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lux, James P Sent: Wednesday, December 10, 2008 11:26 AM To: Jon Maguire; FlexRadio Reflector Subject: Re: [Flexradio] Sensitivity Sensitivity measurements are a canard, anyway, at least for HF. Atmospheric noise is going to dominate receiver noise for the most part. What you REALLY want to know is the instantaneous dynamic range (how big a signal next to my signal can I tolerate). Not only that, but making quality measurements at -140dBm or -150dBm is non-trivial. (we do this at work for space radios) How do you know that you're not getting wideband hash from the computer in the next room leaking into your test set? What's the precision of your attenuator that's giving you your test signal? You might have a precision 0dBm source, and the signal generator has 10dB steps, but I'll bet that the 140dB step has a pretty big uncertainty. (just from packaging issues) (Agilent E8663B which goes down to -135dBm, only has level accuracies to -80dBm, where it's +/-0.8dB) (Agilent E4418B power meter with the 8481D head (which goes down to -70dBm) is good to 1-2%) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jon Maguire Sent: Wednesday, December 10, 2008 9:21 AM To: FlexRadio Reflector Subject: [Flexradio] Sensitivity Hello fellow Flexers. This was posted on the IC7700 Yahoo group the other day. Some comments would be interesting. Thank you. 73... Jon W1MNK Wow, that surprises me.. I thought the IC-7700 would have better noise floor figures when signal sensitivy is equal with the Pro 3. When you're into the -140 dBm MDS range, I would expect some sampling variance from rig-to-rig. The ARRL lab engineers are testing one unit, not a large sample. So, on any given day, they may end up with a unit that measures slightly better or worse than another production unit. Now compare MDS in the QST Product Reviews at 14 50 MHz across a range of transceivers from competing manufacturers. Generally, the Icom rigs are far and away more sensitive than their competition. For example, look at the MDS for the new SDR product like the Flex-5000A. ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] New architecture lands
And WITHOUT a thud: Eric Wachsmann, KE5DTO, has been succesffully moving the C# hardware control out of PowerSDR for the Flex 5000 and has successfully done the first steps of interop and is successfully sending and acting on commands using Erlang to manage the remotable service and a gen_tcp behavior and using sockets. We are doing a major rework on the firmware that will indeed allow us EXTREMELY fast control of the Flex 5000 if it meets all of the promise the manufacturer claims it will. If so, midi will be replaced with a file descriptor type interface and this will run across all platforms. Midi will still be useful for other reasons and when jack2 comes to a release, midi will be easily transported via jack and netjack on linux, OS/X and Windows. Bob Tracy is a man for whom my admiration grows daily. He has a working browser based baby step GUI console done in GWT sending and receiving commands and a yaws server deliver said services. For the Flexers and DttSP readers The new architecture is born and Brickle and Tracy will forever be owed our thanks. Bob Sent by Frank to DttSP -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Frank Brickle Sent: Saturday, December 06, 2008 11:51 AM To: [EMAIL PROTECTED] Subject: [dttsp-linux] Accumulating VR code in CGRAN For those of you singing along at home, the key functional components of the VR are now in svn at https://www.cran.org. They include * the kernel executive (vrk) * the storage manager for transient and semi-persistent data (vrmeme) * the sdr-core control proxy (ducpin), to work with the new datagram command/update regime * the GNU Radio and/or SDR-1000 control proxy (grape) and remote executive (exec_server) * miscellaneous conveniences such as fast back-channel file transfer. In accord with the Open Source imperative to publish early and often, these components are out there for examination and abuse now, without any guarantee beyond the claim that they all work correctly, and correctly together. They won't even seem very interesting until the example configurations are put online over the next few days. All this stuff works fine when distributed across all the machines on my own LAN. Given proper Erlang and Python installations, it should also all work across any platforms (Linux, OS X, BSD, Win). Usual caveats apply concerning DNS quirks, firewalls, etc. With these pieces in place, the final addition is the Erlang application configuration that starts, supervises, and stops the whole system with a single button push. That's the last step. Until then, to quote Legolas, It's knife-work down here. 73 Frank AB2KT PS If you are interested in playing with the code, you'll probably want to install the latest Erlang/OTP (R12B-5) and yaws releases. PPS If you're concerned with talking to vrk in the most direct way possible, consider using curl at first rather than plugging away with a browser or other web framework. ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. And yes I said, yes I will Yes, Molly Bloom ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] improvement request
Is ctrl-Z already defined? This is a good idea. Bob ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. And yes I said, yes I will Yes, Molly Bloom -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ted Sent: Saturday, December 06, 2008 1:18 AM To: flexradio@flex-radio.biz Subject: Re: [Flexradio] improvement request I've often thought a frequency undo, maybe 5-10 deep, would be 'handy'. Ted NX6C ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] old stuff!
And smarter than 99.99% of those 1/5 your age. Of all the people making contributions to getting us going on the next generation of SDR software for flex and others, with AMAZING things, it is Bob. He is the single most amazing septuagenarian I know. I know an octogenarian who is probably smarter but I live and work in place where everyone is smarter than I am and by a lot so, in my opinion, they are both rare events. I just talk louder and with an accent. On top of that, Bob makes a heckuva homebrew and I don't mean radios! How much better does he need to get? Bob ARRL SDR Working Group Chair Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. And yes I said, yes I will Yes, Molly Bloom -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Tracy Sent: Thursday, December 04, 2008 4:13 PM To: Stan; richard allen; FlexRadio@flex-radio.biz Cc: [EMAIL PROTECTED] Subject: Re: [Flexradio] old stuff! 11/27/1936, I'm older than dirt! 73 Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
