Re: [Flexradio] Upgrades and bug fixes to test
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.. :) 73's Phil...VK6APH ___ 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
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 ___ 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] Upgrades and bug fixes to test
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 ___ 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] 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/
Re: [Flexradio] Upgrades and bug fixes to test
Yesterday I set the Sample Rate back to 4800 khz, just to see how great the RX filtering can be. It has been a long time since I used the 4800. Wow, there really is a big difference in the RX filter curve. I can even hear a difference between 100hz and 50hz. About a month ago there was a comment on the SVN notes that the same steep filter curve could be achieved regardless of the Sample Rate with new coding being worked on. Did I understand that correctly? This would be great for CW of course. Sure would be fantastic to have the great filtering but with the nice wide spectrum and very low latency of the 192 or 96 sample rates. 73 John N3WT -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz]on Behalf Of Bob McGwier Sent: Wednesday, March 18, 2009 10:41 AM To: Tim Ellison Cc: flexradio@flex-radio.biz Subject: 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 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] Support - Thank You
I just wanted to take a minute and mention how much I appreciate the support I have received from the Flex group; especially Eric. I have started working a bit with Visual Studio.net and had questions; Eric answered all of these extremely quick and right on target. The main thing here is that he could have said that's not support and your wasting my valuable time and I definitely would understand; I asked questions that would fall into a training session. This is well above and beyond any level of support that I am accustomed to. I just wanted to say thank you to Eric and all of the group here; you are setting new standards. Thank you, Joe WD5Y ___ 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
Hi Bob, Linux version? Regards, John g0orx/n6lyt On 03/16/09 22:26, Bob McGwier wrote: 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 ___ 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
Sure would be fantastic to have the great filtering but with the nice wide spectrum and very low latency of the 192 or 96 sample rates. Your wish may be closer than you think. There is some work being done on multi-rate DSP (down sampling) and that should give you what you wish for. There is no delivery time frame for it, but it is in the mix with all of the other really cool DSP enhancements that will be coming down the pike. Like the recent significant changes in the RX audio signal chain in the SVN Test branch Bob announced yesterday on the Reflector. -Tim -Original Message- From: John Sweeney [mailto:n...@comcast.net] Sent: Wednesday, March 18, 2009 11:50 AM To: Bob McGwier; Tim Ellison Cc: flexradio@flex-radio.biz Subject: RE: [Flexradio] Upgrades and bug fixes to test Yesterday I set the Sample Rate back to 4800 khz, just to see how great the RX filtering can be. It has been a long time since I used the 4800. Wow, there really is a big difference in the RX filter curve. I can even hear a difference between 100hz and 50hz. About a month ago there was a comment on the SVN notes that the same steep filter curve could be achieved regardless of the Sample Rate with new coding being worked on. Did I understand that correctly? This would be great for CW of course. Sure would be fantastic to have the great filtering but with the nice wide spectrum and very low latency of the 192 or 96 sample rates. 73 John N3WT -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz]on Behalf Of Bob McGwier Sent: Wednesday, March 18, 2009 10:41 AM To: Tim Ellison Cc: flexradio@flex-radio.biz Subject: 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 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] Anyone out there using 1920/1200 screen resolution?
Hi guys I have a beta release of FlexLoader that fixes the current terminal bug but one tester reported some anomalies when running the new beta release at 1920 x 1200 (you probably need a 24 monitor to get this large a window). If you have a computer that can run this resolution in a stable manner and would be willing to test the beta release of Flexloader, will you send me a note at nealk3nc at gmail.com? Thanks so much! Neal Campbell Abroham Neal Software Programming Services for Windows, OS X and Linux www.abrohamnealsoftware.com (540) 242 0911 ___ 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
John -- I think you'll see that a number of these issues either hadn't crept into the Linux version, or else had been addressed previously. Bob has been very good about maintaining the canonical version on CGRAN; I've tried to do the same. A lot of what needs to be done is simply reconciling the signal chains between the canonical and PowerSDR versions, although there's an accumulation of new features on CGRAN that haven't been retrofitted elsewhere, and probably won't be. 73 Frank AB2KTt On Wed, Mar 18, 2009 at 12:17 PM, John Melton john.mel...@sun.com wrote: Hi Bob, Linux version? Regards, John g0orx/n6lyt On 03/16/09 22:26, Bob McGwier wrote: 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 ___ 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/ -- There's no such thing as a good Canadian. If there was, they wouldn't live there. -- Billy Bob Neck ___ 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
If yoiu want to look at what the Flex looks like when ypu turn on the compander just turn on one of the scope modes and talk in the mic 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/
[Flexradio] K-3 setup vs Flex setup
Ahti OH2RZ recently sent a link to an article that looked at the K3 speech processor. http://www.cliftonlaboratories.com/elecraft_k3_speech_processing.htm I found it interesting you need a room full of test equipment to analyze the K-3's performance. With the Flex radios you need to turn on the bandscope, and use the recorder. Here are a couple my blog entries that look at the versatility of the Flex system http://w9oy-sdr.blogspot.com/2009/02/audio-2.html http://w9oy-sdr.blogspot.com/2009/03/vomax-schmomax-gimme-equation.html http://w9oy-sdr.blogspot.com/2009/03/recording.html The article on the compander is how the Flex does its processing. The others do not address the issue directly but show how easy it is to analyze your signal. 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/
[Flexradio] Flex 5000A with 4 pin Firewire Cable; PowerSDR with Windows XP 64
I recently noted that FlexRadio is now offering a 6-pin to 4-pin Firewire cable for laptops. I was under the impression that a 6 pin cable was required with the Flex 5000.I have a Dell XPS 1530 laptop with a 4 pin Firewire input. A 6 to 4 pin adaptor happened to come with a Firewire card I got for my PC, so I dug it out and tried it with the laptop. The 4 pin input to the laptop works great with PowerSDR. I was using an Expresscard Firewire adaptor with 6 pin inputs, but it was clutsy because the adaptor was a 34 mm card in a 54 mm slot. Now I don't have to use an adaptor at all. The 4 pin solution is much better. I look forward to using it soon with the Flex 3000. I had a recent experience with a fast quad core PC which runs Windows XP 64 (not Vista). I was getting dropouts every minute with PowerSDR. I finally came to the conclusion that the Gigabyte motherboard in the PC was causing the drop outs due to a latency problem. I changed the motherboard to a Republic of Gamers Striker II Extreme/MSE. It is definitely a quieter board with the DPC latency checker showing latencies flat near the bottom of the scale. Now I am able to use Windows XP 64 with PowerSDR, at last. In this configuration the CPU capacity meter in PowerSDR shows that it is using about 5% of the CPU's capacity. Another advantage of the Striker II Extreme board is that it has its own 6 pin Flexwire input. PowerSDR works fine with it. 73, Sig NV7E + ZS6SIG ___ 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
Bob Thanks for the new code. My HF noise aboard a boat is atrocious on some bands. The sonars harmonic pulses are gross on 75M and the NB will take it out but high level SSB nearby distorted the audio I would be listening to greatly before. Tried your new test code last night and the distortion looks to be gone or very little at first glance and the sonar pules gone with NB on, wonderful. The ANF seems better and slowly ramps in notch if tone is low level. NR has not really worked for me for a long time and now seems to work, although I need to play with controls to be able to copy weaker signals with NR on. There seems to be a problem if I turn on both NR and ANF at the same time. The Panadaptor goes flatline midscreen and the audio goes very choppy at about a second interval.This is with 2 nd rec off but this also occurs on 2nd receiver if I engage both there also. Tests are with default NR and ANF settings .If I reduce taps on NR down to 40 or below pan video mostly works ( some freezes) and audio slightly choppy. This may be a problem with too much load on my new PC . The cpu shows 15% normally ,NR on boosts cpu to 28%, ANF on boosts cpu to 25%. Turning both on cpu still reads 29%( probably bogus )but there is overload on system by evident audio- video failures and if I watch windows task manager the first graph of the 4 cores zooms up to 100% usage. Running test branch N4HY pwrsdr audio at 96 Khz w 2048 buffer I have not had much experience with this newly built PC yet, so can not comment much on it's characteristics. It was running pwrsdr ver 1.16.2 well for a week and had no issues at either 96Khz or 192Khz that I found. It also runs HPSDR mercury-ozy at 96Khz but does have the 192Khz mercury stutter others seem to also have( usb issue ??). I know I do luv it so far and thank you for turning me on to it.I hope that it isn't too under powered for this job, didn't think I needed a quad core 2.8Ghz for just the radios. New PC = Atom 330 w/2Gig ram and WD 500 Gig HD , OS= WinXP pro upgraded to SP3, Trendnet 3 port firewire card all in mini atx case w/250 Watt supply.external usb dvd drive ( hope to mount a mercury/ozy 2 plug mini atlas in dvd case space ) Flex 5000A w 2nd receiver and ATU Again thanks for all your great work and ideas.. Duffy NA6MM/4 marine mobile Mississippi (pics at www.thaisuites.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] IQTest code
I want to prepare this group for some testing that needs to be done. I have an approach in mind that will let us roll out RX adaptive IQ immediately. It works as follows and the work is done in the TX IQ cal to make it happen. 1) TX IQ calibration session is initiated. 2) DDS Generator is turned on * 3) RX IQ is adapted. Takes 100 ms.* 4) RX IQ adaptation is turned OFF (not correction, adaptation)* 5) TX IQ runs as before. 6) TX IQ numbers stored 7) RX IQ adaptation enabled * * == new step If anyone sees a problem with this say so as that will prevent a few hours work to make this happen. Hearing none, I will proceed and ask you to test later. I want to roll this RX IQ stuff out but NOT break what we have. 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] Upgrades and bug fixes to test
Duffy: Thanks. This is the kind of report I am looking for. Where you state your results, the impacts, the equipment used and it has a story so I can get the context because I am so thickheaded. Thanks! Bob On Wed, Mar 18, 2009 at 1:28 PM, Duffy na6mm...@earthlink.net wrote: Bob Thanks for the new code. My HF noise aboard a boat is atrocious on some bands. The sonars harmonic pulses are gross on 75M and the NB will take it out but high level SSB nearby distorted the audio I would be listening to greatly before. Tried your new test code last night and the distortion looks to be gone or very little at first glance and the sonar pules gone with NB on, wonderful. The ANF seems better and slowly ramps in notch if tone is low level. NR has not really worked for me for a long time and now seems to work, although I need to play with controls to be able to copy weaker signals with NR on. New PC = Atom 330 w/2Gig ram and WD 500 Gig HD , OS= WinXP pro upgraded to SP3, Trendnet 3 port firewire card all in mini atx case w/250 Watt supply.external usb dvd drive ( hope to mount a mercury/ozy 2 plug mini atlas in dvd case space ) Flex 5000A w 2nd receiver and ATU Again thanks for all your great work and ideas.. Duffy NA6MM/4 marine mobile Mississippi (pics at www.thaisuites.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] Upgrades and bug fixes to test
Duffy, The performance issues you described are, I believe related to the ATOM. I have the same issues on the ATOM I use. I believe that once the modifications Bob is planning for the DSP are realized, the computational overhead will decrease enough to make the ATOM viable at the higher sampling rates with PowerSDR. Also the more efficient code that will come out of the VS2008 initiative, will also help too. I primarily purchased the ATOM to eventually be used as a headless interface (sans GUI) between the network and the radio hardware for the upcoming New Architecture. It was an added bonus that it could be used for PowerSDR if Windows was stripped down and optimized for performance. -Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Duffy Sent: Wednesday, March 18, 2009 1:28 PM To: rwmcgw...@gmail.com; FlexRadio@flex-radio.biz Subject: [Flexradio] Upgrades and bug fixes to test Bob Thanks for the new code. My HF noise aboard a boat is atrocious on some bands. The sonars harmonic pulses are gross on 75M and the NB will take it out but high level SSB nearby distorted the audio I would be listening to greatly before. Tried your new test code last night and the distortion looks to be gone or very little at first glance and the sonar pules gone with NB on, wonderful. The ANF seems better and slowly ramps in notch if tone is low level. NR has not really worked for me for a long time and now seems to work, although I need to play with controls to be able to copy weaker signals with NR on. There seems to be a problem if I turn on both NR and ANF at the same time. The Panadaptor goes flatline midscreen and the audio goes very choppy at about a second interval.This is with 2 nd rec off but this also occurs on 2nd receiver if I engage both there also. Tests are with default NR and ANF settings .If I reduce taps on NR down to 40 or below pan video mostly works ( some freezes) and audio slightly choppy. This may be a problem with too much load on my new PC . The cpu shows 15% normally ,NR on boosts cpu to 28%, ANF on boosts cpu to 25%. Turning both on cpu still reads 29%( probably bogus )but there is overload on system by evident audio- video failures and if I watch windows task manager the first graph of the 4 cores zooms up to 100% usage. Running test branch N4HY pwrsdr audio at 96 Khz w 2048 buffer I have not had much experience with this newly built PC yet, so can not comment much on it's characteristics. It was running pwrsdr ver 1.16.2 well for a week and had no issues at either 96Khz or 192Khz that I found. It also runs HPSDR mercury-ozy at 96Khz but does have the 192Khz mercury stutter others seem to also have( usb issue ??). I know I do luv it so far and thank you for turning me on to it.I hope that it isn't too under powered for this job, didn't think I needed a quad core 2.8Ghz for just the radios. New PC = Atom 330 w/2Gig ram and WD 500 Gig HD , OS= WinXP pro upgraded to SP3, Trendnet 3 port firewire card all in mini atx case w/250 Watt supply.external usb dvd drive ( hope to mount a mercury/ozy 2 plug mini atlas in dvd case space ) Flex 5000A w 2nd receiver and ATU Again thanks for all your great work and ideas.. Duffy NA6MM/4 marine mobile Mississippi (pics at www.thaisuites.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] K-3 setup vs Flex setup
Thank you Lee for bringing up this valuable feature of the Flex and other SDR equipment. Proper use of compression (or clipping) together with equalizers and filters makes high power amplifiers unnecessary in many cases. Try this concept and you'll find that you can manage in DX pileups with much less of output power. The DSP can make this function better than those clumsy hard wired processors of the yesteryears. Since some time already I'm using 10 W only. Please, don't pollute the scarce nature's resource, the electromagnetic spectrum. Save and use small and smart power on HF rather than heat waves on the infrared bands. ;-) 73, Ahti OH2RZ 2009/3/18 Lee A Crocker lee_croc...@yahoo.com: Ahti OH2RZ recently sent a link to an article that looked at the K3 speech processor. http://www.cliftonlaboratories.com/elecraft_k3_speech_processing.htm I found it interesting you need a room full of test equipment to analyze the K-3's performance. With the Flex radios you need to turn on the bandscope, and use the recorder. Here are a couple my blog entries that look at the versatility of the Flex system http://w9oy-sdr.blogspot.com/2009/02/audio-2.html http://w9oy-sdr.blogspot.com/2009/03/vomax-schmomax-gimme-equation.html http://w9oy-sdr.blogspot.com/2009/03/recording.html The article on the compander is how the Flex does its processing. The others do not address the issue directly but show how easy it is to analyze your signal. 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/ ___ 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/
Re: [Flexradio] Upgrades and bug fixes to test
On 03/16/09 06:26 pm Bob McGwier wrote: 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. NR seems to work much better. Moreover, when using the combination of the new PowerSDR and the new FireWire driver, I don't get the lockups I was getting before: even after running AlacrityPC to disable a slew of unneeded services, PowerSDR would often just stop dead in its tracks; clicking Stop and Start again would bring it back to life. The last couple of days I have left PowerSDR -- and Ham Radio Deluxe -- running for hours on end (muted) and when I come back everything is still just fine. Thanks and 73 Alan NV8A ___ 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 new driver has some performance and stability fixes in it. Thanks for validating it since it is a beta and all feedback is very useful. - Tim -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Alan NV8A Sent: Wednesday, March 18, 2009 10:18 PM To: FlexRadio Reflector Subject: Re: [Flexradio] Upgrades and bug fixes to test On 03/16/09 06:26 pm Bob McGwier wrote: 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. NR seems to work much better. Moreover, when using the combination of the new PowerSDR and the new FireWire driver, I don't get the lockups I was getting before: even after running AlacrityPC to disable a slew of unneeded services, PowerSDR would often just stop dead in its tracks; clicking Stop and Start again would bring it back to life. The last couple of days I have left PowerSDR -- and Ham Radio Deluxe -- running for hours on end (muted) and when I come back everything is still just fine. Thanks and 73 Alan NV8A ___ 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/
