[Flexradio] Expanded Frequency Descriptors
A few years ago I downloaded an enhanced frequency database for the SDR-1000. The file inserted a description Maritime RTTY for example, instead of Out of Band in the descriptor field. Does anyone know where to find that file today? Tnx, Brian _ Hotmail has tools for the New Busy. Search, chat and e-mail from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_1 ___ 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] Bassy Audio
Tim's suggestion to use the EQ is good. I boost the 2K setting. You can also cut the lows by adjusting your transmit bandwidth setting. Try 150 Hz to 2900 Hz bandwidth and boost the 2K setting in the EQ as needed for good general purpose audio. Add +3 on the Compander for a little punch. Don't forget to name the profile and save it. K3VR From: Burt k1...@yahoo.com Subject: Re: [Flexradio] naive question... To: flexradio@flex-radio.biz Message-ID: 385926.35900...@web59002.mail.re1.yahoo.com Content-Type: text/plain; charset=iso-8859-1 I get the same compaints you get and I got my Heil from Flex. I got better audio with a Icom type hand mike that comes with basic rigs. One must understand that there are plusses and minuses to the Flex. The down side is you have double the failure rate as a computer is involved with its own issues. The upside, need I tell you, there are many starting with the panadapter. No one has better customer service. Burt --- On Fri, 1/22/10, John Ragle tpcj1...@crocker.com wrote: ???I have complaints that my audio is bassy. [F3K, USB, 6 meters] The microphone is a Heil HM-5 and the mike gain is set so that voice peaks show around 0 dB on the meter. If my interpretation is correct, this could be taken care of with the transmit equalizer, cutting the bass and boosting the mid-range and treble ends. Again, I need some reassurance that my understanding of the word equalizer in pSDR is the same as the common usage. Some guidance about amount of boost and attenuation would be useful. ???Thanks... John Ragle -- W1ZI _ Hotmail: Powerful Free email with security by Microsoft. http://clk.atdmt.com/GBL/go/196390710/direct/01/ ___ 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] Intercontinental Flex Remote
Hello Flexers, Randy (W7CPA) and I completed our first intercontinental remote conversation this morning using FLEX SDR technology. Randy is physically located in Gloucestireshire, UK while on business. Randy's using a Mac Laptop. Randy's SDR is located in Arizona. I'm in Pennsylvania using my SDR1K. The RF path is from PA to AZ with an Internet conversion to the UK, and back again. Interesting stuff. Randy, W7CPA, is currently on 14.272.5 if you'd like to make contact with him. Point your directional antenna toward AZ and picture him drinking a pint in the UK. Brian _ With Windows Live, you can organize, edit, and share your photos. http://www.windowslive.com/Desktop/PhotoGallery ___ 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] Special Computer
Thanks Don, 1st I've heard of it. Will keep an eye out for that problem. Another good reason to try Neal's pre-configured approach Brian Don wrote: Be careful with the 8400 as this was one of a number of PCs from Dell that experienced the capacitor failure - where the top of the cap pushed up and was no longer flat. apparently they were using a bad batch of caps on their motherboards. I had two of the 8400s and I just recently trashed them both as the motherboards failed. Up to about 1.5 years ago Dell was providing replacement motherboards regardless of whether the pc was in warranty or not. They have since discontinued that service. Don - kx9q _ Windows Live™: Keep your life in sync. http://windowslive.com/explore?ocid=PID23384::T:WLMTAGL:ON:WL:en-US:NF_BR_sync:082009 ___ 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] fahcore.exe by AB2CD
See: http://folding.stanford.edu/ Someone placed the software on your computer without your knowledge or you downloaded and clicked the .exe file by mistake. Brian Jim wrote: Hey Folks! I am not computer savvy but know enough to look at task manager. I just discovered that with no programs running my CPU usage was 25%. I found that my Dell had a program running in the background that was allowing the greater scientific community access to my processor. How creepy is that? It's like being an organ donor while your still alive without your consent. Don't tell Obama about this one. Anyway, the program is FahCore_11.exe. I have since removed it. Has anyone ever heard of this? Jim AB2CD _ Get back to school stuff for them and cashback for you. http://www.bing.com/cashback?form=MSHYCBpubl=WLHMTAGcrea=TEXT_MSHYCB_BackToSchool_Cashback_BTSCashback_1x1 ___ 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] Special Computer for Flex Radio
I think it's wonderful that Neal is offering a turnkey computer solution for people who don't want to tweak their systems. I use a Dell Dimension 8400, circa 2005. It's 4 years old, but it works great for the SDR1000 and always has. For the 3K and 5K you'd need to add a firewire card and 2G of RAM but those are inexpensive items, easy to install. The Dell Dimension 8400 is still available used at eBay (including pre-installed WinXP) for about $250, which is what I paid, used. See item number 180394182401. The basis of Neal's offering, however, is acceptable performance at minimum price. I'm computer savvy (Microsoft Certified Professional awarded many years ago), but I weighed the time (and money) to tune a dedicated PC, and found Neal's minimum pricing option very attractive. _ Get back to school stuff for them and cashback for you. http://www.bing.com/cashback?form=MSHYCBpubl=WLHMTAGcrea=TEXT_MSHYCB_BackToSchool_Cashback_BTSCashback_1x1 ___ 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] Antivirus Software with Flex
I second the Avast recommendation. It updates automatically. It's fast. It plays well with PowerSDR and the free Zone Alarm basic firewall. Avast personal edition and Zone Alarm basic firewall are free. [ http://www.avast.com/eng/download-avast-home.html ] Free Avast AV software [ http://www.zonealarm.com/security/en-us/free-upgrade-security-suite-zonealarm-firewall.htm ] Free Firewall PC Magazine Review of Avast 4.8: http://www.pcmag.com/article2/0,2817,2282704,00.asp _ Get your vacation photos on your phone! http://windowsliveformobile.com/en-us/photos/default.aspx?OCID=0809TL-HM ___ 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] DRM and Flex Part II
RCI began broadcasting at 2100 UTC on 9.8 mHz today. I am using the SDR1000, so those of you with the SDR5K or SDR3K will need to share your successful settings. My settings: (DRM Program) Sound Card Selection Sound In M-Audio Delta 44 Multi Sound Card Selection Sound Out M-Audio Delta 44 Multi My settings (SDR1K) Mode: DRM or SAM VAC: None AF: Mute Enabled Filter Width: 10 kHz I've uploaded the DRM files and a current .pdf Sked of DRM programs for the use of Flexers here: http://tinyurl.com/flex-DRM Incidentally, I typically have 40 processes or more, going at the same time, including the Flex console. CPU usage averages 20% or less. I never have any glitches in the performance of the SDR1K, or computer crashes running WinXP on a Windows box running at 3G, with 2G RAM. Flex Process Priority is set to High. Flex Audio Buffer is set to 1024 with sample rate of 48,000. DSP Buffer is set to 4096 and 2048 for Phone and Digital. Windows was optimized using instructions I found in the Knowledge Base. Good luck. Brian +++ The data for the decoded audio is in the Main Service Channel (MSC) which is the far right led on the opening GUI. It must be on to hear any audio. Under sound card selection in dream, sound out normally is your PC's sound card (i.e. connected to your speakers). You only need VAC for audio IN to dream (vac cable 2 for sound in). Mel, k0pfx +++ Try taking it off VAC and reconfigure to use your internal sound card. de Mike, K6ZSR +++ Tnx Brian. I have downloaded and installed the program. I noticed I have to start Dream before starting PSDR or it will abort (F5K). Under settings I selected FlexRadio Audio for both Input and Output. Not sure if that is correct or do I have to setup a VAC? Went to 9.405Mhz to listen, but there was no transmissions. Is there a schedule? John ve3dvv +++ [Flexradio] DRM and Flex The program works great. Put PowerSDR/5000A into DRM mode and decodes much better than SAM. Mike +++ I have DREAM receiving Vatican Radio on my 5000 at 9.755mhz in PSDR DRM mode. The DREAM display level is about -15db, the display on the left says Vatican Radio 14.48kb EEP AAC+ Mono. The box on the right side has various changing information. However I never get any audio. The same goes for TDP at 9.790. In the settings box sound in is virtual cable 2 and sound out is virtual cable 1. Anyone have any thoughts as to why I am not getting any audio? Thanks Zack N8FNR _ Get your vacation photos on your phone! http://windowsliveformobile.com/en-us/photos/default.aspx?OCID=0809TL-HM ___ 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] DRM and Flex
Here are the files (attached) needed for decoding DRM. They were once readily available online, but, I've noticed it's difficult to find them with a simple search, so I uploaded them for Flexer's convenience at the URL below. This program is for Windows, and it works well with the SDR1000, Win XP Pro, Flex PowerSDR 1.18.2, on a 3 gHz, Pentium 4 single core machine, 32 bit, using 2GB of RAM. http://tinyurl.com/mcrwmq I listen to DRM on the Sackville, NB relay of Radio Canada International on 9.8 mHz. You'll recognize DRM because it sounds like digital hash (white noise) and it looks like a 10 kHz wide, flat-top, digital signal in the Flex panadapter. Unzip the DRM files into a folder called DRM and click DRM.exe which will open the program. Tune in the DRM signal with your Flex radio. I have the best results using the SAM mode with a 10 kHz filter, centered on the DRM signal. Set up your soundcard to decode the signal in your DRM program preferences. If the signal is strong enough, you should be able to decode the DRM signal. When using my SDR1000, I mute the Flex Console. It takes quite a bit of signal (-75 dBm or more) to decode DRM successfully. Good Luck! Brian _ Get back to school stuff for them and cashback for you. http://www.bing.com/cashback?form=MSHYCBpubl=WLHMTAGcrea=TEXT_MSHYCB_BackToSchool_Cashback_BTSCashback_1x1 ___ 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] Alpha Code Discussions
Bob has a good point. We don't want to scare away potential users by talking about broken code without a clear understanding that we're talking about 'Alpha Code' or 'Experimental Code.' However, two lists might be cumbersome and add to the confusion. I believe it's all in the semantics. When discussing test branches, perhaps we should preface our threads with SUGGESTED IMPROVEMENTS IN THE EXPERIMENTAL CODE BASE referencing the SVN number and branch, etc., right up front, so that it's very clear to newcomers that the stable code works just fine, and we are simply discussing improvements and refinements in the test branches. Brian -Original Message- Subject: 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 _ Hotmail® has ever-growing storage! Don’t worry about storage limits. http://windowslive.com/Tutorial/Hotmail/Storage?ocid=TXT_TAGLM_WL_HM_Tutorial_Storage_062009 ___ 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] Power Out and Transverters
Marty -- I wouldn't use the Ten-Tec transverter Model 1210 for anything but casual FM and SSB use. It drifts like the powder at Vail in January. On the other hand, it's cheap, and you could probably add a thermistor, ala the SDR-1000 freq. drift fix. There are better options (DEMI) for precision work. Art -- As for power out, create a profile with the power output and audio characteristics you desire and save the profile. Select the profile you need for the mode of operation desired. I have profiles for 100w, 25, 2w, etc. Just create a profile and save it, then select the profile you need. Pwr out always defaults back to 100 when changing bands. vs 1.16.2, 1.18.0, and pretty betty. What do I have set incorrectly ? Thanks, Art??? K8JK Hi All, I'm thinking about getting a 2 meter transverter to hook up with my Flex-3000. I've read reports of some models of transverters drifting too much during transmit for use in EME. Any suggestions/recommendations about which transverters are suitable for SDR EME work? One more quick question, How many KHz can JT65b look at and decode? It would be fun to be able to see everyone on the band. 73, Marty AB5GU _ Lauren found her dream laptop. Find the PC that’s right for you. http://www.microsoft.com/windows/choosepc/?ocid=ftp_val_wl_290 ___ 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] Bandwidth of Flex 3000
Ray, You may be thinking of the letters Riley wrote to four ESSB users. After those letters went out, bandwidth petitions that sought to limit AM and SSB bandwidth were repeatedly and consistently over ruled by Order of the FCC Chief of the Wireless Telecommunications Bureau, in favor of experimentation and flexibility. See, e.g., DA-04 3661 (FCC DENIAL of bandwidth petition RM-10740). After the FCC Order was published, ARRL withdrew it's own bandwidth petition, RM-11306. So, ESSB is very much alive, and legal, in the U.S. If the bandwidth of the Flex 3,000 was the same as the 1,000 and 5,000, I'd probably buy one. http://fjallfoss.fcc.gov/edocs_public/attachmatch/DA-04-3661A1.pdf http://www.arrl.org/news/stories/2007/04/27/101/?nc=1 Brian == Ray wrote: The Federal Communications Commission, the government agency that regulates the Amateur Radio Service in the United States, has recently ruled that ESSB is not in accordance with good amateur and engineering practice on the crowded HF bands. Therefore, US amateurs are not supposed to use ESSB on HF. If I am wrong on this, someone from Flex can shoot me down, but the way I understand it, you should have no problems using the FLEX-3000 for ESSB. Just don't do it in the United States. 73, Ray, K9DUR _ Hotmail® has ever-growing storage! Don’t worry about storage limits. http://windowslive.com/Tutorial/Hotmail/Storage?ocid=TXT_TAGLM_WL_HM_Tutorial_Storage1_052009 ___ 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] 40m qrm with harmonics
Dave, are you hearing an ionosonde? Does it sound like a swooosh that moves up or down the band every few hours? http://www.ngdc.noaa.gov/stp/IONO/ionogram.html Message: 4 Date: Fri, 28 Nov 2008 From: David Beumer W0DHB Folks I'm trying to track down the source of some nasty QRM that appears as an 4khz wide carrier that meanders through 40m with 2nd ,3rd and 4th harmonics on 20, 15 and 10. I've got a screen shot of waterfalls of 40m (Top) and 20m (bottom) showing the signal at URL: www.wa3fdb.net/40mQRM.htm I'd appreciate any clues as to what it is .. I don't believe it is anything internal to the 5000A . It is strong enough on 20 m that it prevents digital mode reception. I'm located about 40 miles NNW of Denver, grid DN70kc . I'm also checking with folks in a 10 mile radius or so to see if they can hear and/or see it. Thanks Dave - W0DHB _ Proud to be a PC? Show the world. Download the “I’m a PC” Messenger themepack now. hthttp://clk.atdmt.com/MRT/go/119642558/direct/01/ ___ 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] 40m qrm with harmonics
An ethernet switch could be the culprit. My next guesses would be be either an internet cable modem or a switching power supply. David, how close are you to Boulder? There is a new digital ionosonde station in Boulder, with a 4Kw amplifier, undergoing testing as of November 22, 2008. It's a VIPIR, Vertical Incidence Pulsed Ionospheric Radar installation. http://www.ips.gov.au/IPSHosted/INAG/web-69/2008/boulder_vipir.pdf CC: [EMAIL PROTECTED]; flexradio@flex-radio.biz From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Re: [Flexradio] 40m qrm with harmonics Date: Sat, 29 Nov 2008 16:14:27 -0800 On Nov 29, 2008, at 10:21 AM, David Beumer W0DHB wrote: Brian You may be on to something.. I have since found the same pattern at around 5 Mhz with harmonics in 30m . I have also found they are in multiples about every 170Khz or so .. They swoosh through every 15 seconds or so. Mulitples of 170KHz? I have that. It turned out to be my Linksys managed ethernet switch.Brian Lloyd Granite Bay Montessori School 9330 Sierra College Bl brian AT gbmontessori DOT com Roseville, CA 95661 +1.916.367.2131 (voice) +1.791.912.8170 (fax) PGP key ID: 12095C52A32A1B6C PGP key fingerprint: 3B1D BA11 4913 3254 B6E0 CC09 1209 5C52 A32A 1B6C _ Access your email online and on the go with Windows Live Hotmail. http://windowslive.com/Explore/Hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_access_112008 ___ 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] Computer Suggestion
I'm using a Dell Dimension 8400, dual core CPU, 1GB ram, and 160GBHD running XP. Refurb units w/ XP installed and warranty available at ePay for about $300~$350. Never a problem using the radio and any/all apps at the same time. _ Be the filmmaker you always wanted to be—learn how to burn a DVD with Windows®. http://clk.atdmt.com/MRT/go/108588797/direct/01/ ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] The inherent muddiness of typical amateur transceiver
audio without EQ Any thoughts? Edwin MarzanAB2VW According to hams on both sides of the issue, bandwidth is both the problem and the cure, but you can't argue with the modern science of sound, based on almost 80 years of solid research since those outdated telephone studies were created: By extending telephone bandwidth to 7 kHz and beyond, it is clear that one can markedly reduce fatigue, improve concentration, and increase intelligibility. It is also clear that this improvement is even more significant in real-world room situations, where the sound is often degraded by reverberation, projector or air conditioner noise, accented speech, and other acoustic problems that are encountered in business telephony. Additionally, extending telephone bandwidth below 300 Hz brings a significant increase in presence and realism. In his 1938 paper discussing the bandwidth of the telephone system, ATT's Inglis noted that, 'Frequency limitation is essentially an economic one, subject to change as conditions change.' Here in the twenty-first century, economics and conditions have changed as Inglis predicted, and modern telephony is now in a position to deliver on the promises of wider bandwidth and clearer speech. http://www.polycom.com/common/documents/whitepapers/effect_of_bandwidth_on_speech_intelligibility_1.pdf That said, everyone knows wider bandwidths should not be employed on very crowded amateur bands, nonetheless, the key to intelligibility and fidelity is b a n d w i d t h. About 8 KHz is super and 6 KHz is very good. When transmitting through a 3 KHz filter, some kind of EQ is necessary to relieve muddiness, unless the microphone element attenuates the low end dramatically, beginning at about 150 Hz and as long as it has a corresponding rise of about 6 dB at about 2 KHz. Bob Heil knows this and his mic's are designed accordingly. The EQ built into the PowerSDR software does a great job. If the next hardware edition of Flex-SDR has a preamp and 48v phantom power, I'm there. _ Instantly invite friends from Facebook and other social networks to join you on Windows Live™ Messenger. https://www.invite2messenger.net/im/?source=TXT_EML_WLH_InviteFriends ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] TV signals and 6 meters
Check this URL for a guide to TV sigs near you. http://www.w9wi.com/tvdb/natv.htm The audio carrier for KDKA channel 2 on 55.74 MHz is 10 over S-9 into my SDR-1000 connected to my vertical antenna. SWR is about 7:1. I'm about 20 miles away from their antenna, as the Crow flies... Message: 4 Date: Fri, 23 May 2008 12:11:14 From: David Beumer WA3FDB Subject: Re: [Flexradio] 6 meters To: 'Phil LaMarche' ; 'FlexRadio Reflector' Phil I have a similar problem -- I have heard nothing on 6 meters. I do see a lot of spurs. As a quick test I checked to see if I got local TV channel 2 Video 55.25 Mhz and audio 59.75 -- I received both, but the signal is not as strong as I expected. I'm going to see what the signal strength is on CATV meter I have access to. In your area, you've got channel 3 and you should be able to see the video carrier at 61.25 the audio carrier is at 65.75 -- outside of the upper bound of the Flex receiver. This might give you a reality check .. Dave WA3FDB _ Give to a good cause with every e-mail. Join the i’m Initiative from Microsoft. http://im.live.com/Messenger/IM/Join/Default.aspx?souce=EML_WL_ GoodCause ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Excellent Audio From SDR1K
You're welcome George. I use an Audio-Technica AT-3035 condenser mic. into a W2IHY 8 Band EQ directly into the Delta 44 input #3. I mute input #4 and uncheck stereo link in the Monitor Mixer portion of the M Audio Delta Control Panel. I use a footswitch into the back of the SDR to key the radio. I do not use the EQ portion of the W2IHY box. I only use the mic. preamp section. Any low noise mic. preamp providing the proper phantom voltage for a condenser mic. will work. I do use the EQ software in PowerSDR. My PowerSDR EQ settings for conventional audio are 0, 0, +3, -6, -3, +3, +12, +10, 0, 0. My conventional transmit settings allow for 130 Hz-3,000 Hz transmissions. I always receive outstanding audio reports. In a quiet room, my background noise measures -15 dBm. I modulate the radio to about 0 dBm (never over) by watching the TX Meter selected for mic. My mic. gain is set at 25. With my microphone disconnected, the noise measures -26 dB. That's lower than my background noise by at least 10 dB. I could turn up the mic gain beyond normal operational levels, but, there's no practical reason to do so under normal operating conditions. For DX, AM, and ESSB operation, I change the PowerSDR EQ and transmit width settings. I set all of my PA settings so that a 'front panel' drive setting of 50 is equivalent to about 35 watts, which is enough to drive my Alpha 99 amplifier to 1,500 watts. This scheme works very well to drive my amp to full output and I always get excellent or better audio reports. The microphone you use and your voice characteristics will cause deviations from this model, but this is the model that works very well with the equipment I use. Hope this helps. Brian Date: Fri, 9 May 2008 16:56:37 GMTFrom: [EMAIL PROTECTED] [EMAIL PROTECTED] for the reply Brian! I THINK I have it figured out now. Reading back through the archives it was suggested that putting the mouse arrow over the MOX button allowed the space bar to be used for PTT. That actually works pretty well. Though I've had the radio almost a year, I've been using it mainly for digital modes. The SSB bug just bit a couple of weeks ago and it became a mission to get the SDR-1000 on the air with good audio, which it didn't have before running just a standard microphone. GeorgeN7BUI _ Make Windows Vista more reliable and secure with Windows Vista Service Pack 1. http://www.windowsvista.com/SP1?WT.mc_id=hotmailvistasp1banner ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Min into ch 3 of Delta 44
George, I key my SDR1K using a mic plugged into channel 3 of the Delta 44. It works fine using a mouse to activate MOX. Also works with a foot switch wired to the multi-plug at back of SDR. Computer is a Dell Dimension 8400 (3.0 gig dual core processor) with 1/2 gig RAM and latest standard release of PowerSDR or K6JCA SVN 2173 release. Always keyed SDR1K this way; never had a problem. Brian Subject: [Flexradio] MOX not working with mic plugged directly intochannel 3 of Delta 44To: [EMAIL PROTECTED]: [EMAIL PROTECTED]Content-Type: text/plain; charset=windows-1252 Everything I've read on the reflector indicates that a microphone plugged into port 3 input of the Delta 44 and then keying with MOX via a mouse should work. It doesn't.I have to key with a hand mic plugged directly into the 8 pin port of the SDR-1000, then port 3 accepts the tx audio and transmits it. Am I missing some setup in PowerSDR? Finally got some decent audio out of the SDR-1000 with a Behinger 802 as a preamp for the mic. GeorgeN7BUI _ With Windows Live for mobile, your contacts travel with you. http://www.windowslive.com/mobile/overview.html?ocid=TXT_TAGLM_WL_Refresh_mobile_052008 ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] second receiver
I use a second receiver for diversity reception. The Yaesu FT-1000D was great for this. I also use small Hi-Q receive loops to eliminate noise and a 2nd receiver will be perfect for A/B comparisons. _ In a rush? Get real-time answers with Windows Live Messenger. http://www.windowslive.com/messenger/overview.html?ocid=TXT_TAGLM_WL_Refresh_realtime_042008 ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] transmit inhibit in SDR 1000
Ross, After you start Power SDR, go to SETUPGENERALand click RECEIVE ONLY. Voila, no transmittitori! Brian Date: Mon, 17 Mar 2008 18:38:37 +1300 From: Ross Biggar [EMAIL PROTECTED] Subject: [Flexradio] Probably a simple question To: Flexradio@flex-radio.biz Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=iso-8859-1 I would like to use my 1watt SDR1000 for reception only. Using the panadaptor on the 28mhz transverter downlink. I dont want to take the chance of transmitting while receiving. What is the best way to ensure the rig cannot tx. Is there a hardware line I can disconnect? Regards to all Ross ZL1WN _ Do more with your photos with Windows Live Photo Gallery. http://www.windowslive.com/share.html?ocid=TXT_TAGLM_Wave2_photos_022008 ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] transmit inhibit in SDR 1000
Agreed on risk assessment. Personally, I'd just trust the software. Unless you're planning to conduct your listening on the Space Shuttle, in which case, get detailed instructions from Jim. :) Date: Tue, 18 Mar 2008 11:00:46 -0700 To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; flexradio@flex-radio.biz From: [EMAIL PROTECTED] Subject: Re: [Flexradio] transmit inhibit in SDR 1000 At 10:09 AM 3/18/2008, Brian C wrote: Ross, After you start Power SDR, go to SETUPGENERALand click RECEIVE ONLY. Voila, no transmittitori!Unless there's a bug in the software, or something else grabs the parallel port and sends the wrong sequence of bits out, or . Turning on the Tx requires the following instructions PortOut(0x3BC,0xFF) PortOut(0x3BE,0x00) PortOut(0x3BE,0xFF) There are a lot of other sequences that work for this. The key is that bit 6 coming out of the parallel port has to be high, and pin 14 has to strobe to latch it in. (I think the 574 strobes on rising edge) Of more interest is that the state of the PIO latch (a 74AC574S, IC1 on the PIO card) that drives K13 is indeterminate on power up, so it could power up in the Transmitting state, until the PC gets around to turning it off. Make a risk assessment.. how much will it cost to fix it if something goes wrong? how often do you expect that to occur? Heck, it's not the Therac-25 (a notorious case of a software bug with unexpected lethal consequences), so you're not going to kill someone if it goes awry, but, it's also something that one might not want to trust random software to. Jim, W6RMK _ Don't get caught with egg on your face. Play chicktionary! http://club.live.com/chicktionary.aspx?icid=chick_wlhmtextlink1_feb ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] transmit inhibit in SDR 1000
It's a good idea. I was listening to utility stations and configuring the SDR for cat control with MixW two nights ago. All the sudden the SDR starting moving in freq, with different options turning on and off. Didn't transmit, but I sure wouldn't have wanted to interfere with Air Force One! Date: Tue, 18 Mar 2008 12:12:10 -0700 To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; flexradio@flex-radio.biz From: [EMAIL PROTECTED] Subject: RE: [Flexradio] transmit inhibit in SDR 1000 At 11:18 AM 3/18/2008, Brian C wrote: Agreed on risk assessment. Personally, I'd just trust the software. Unless you're planning to conduct your listening on the Space Shuttle, in which case, get detailed instructions from Jim. :) Doesn't even have to be a space application.. I built a system that downconverted L-band to 21.4 MHz using the SDR1000 as the backend. I can tell you that a MiniCircuits ZEM-4300 mixer cannot tolerate a watt of RF on the IF port. (rated at 40mA max current = 80mW) However, it serves as a fine fuse to save the ZX60-3011 on the other side of the mixer. That's why I went to the technique where I pulled off the BPF board. Jim _ Do more with your photos with Windows Live Photo Gallery. http://www.windowslive.com/share.html?ocid=TXT_TAGLM_Wave2_photos_022008 ___ 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] Am Glitches?
Am is working fine here with v1.9 svn1097 showing. Believe it's actually svn1101. Nevertheless AM is working fine with delta 44, win XP. _ It’s tax season, make sure to follow these few simple tips http://articles.moneycentral.msn.com/Taxes/PreparationTips/PreparationTips.aspx?icid=WLMartagline -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20070330/281919f3/attachment.html ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com/ FlexRadio Knowledge Base: http://kb.flex-radio.com/
