[Flexradio] Hanging TX to RX
I was holding back this message for a long time, because dont know, if it will help. On my side it cured the problem of the hanging TX to RX complet. When at beginning of August my Flex5000 missbehaved and I was hardly ever able to have disent qso, I always had the hanging problem, I observed, that it was only happening when using higher power. I had a SB-1000 Linear hooked up and running about 100 to 200 W mostly Digital modes. Driven from a external soundcard in my computer (Mixw) When using a good working VAC setup the problem hardly ever occured. (Only when PTT still connected) I unplugged the hooked up PTT line at the RCA connecter and used the Tune function to drive the linear to 150 W. With the PTT line connected via the RCA connecter, the system hang. With the PTT line out, the problem was gone. U suspected a Rf interference via the PTT line, as the inputs on the Flex5000 is a very high impedance darlington device, which could confuse the Flex5000 logic, even Gerald (Flex) added a a few SMD filter beats in that line. I added first external a L-C filter with a L of 10 microH in serie and a C of 10 nF after the L to Ground. That did it, I never had a hanging Problem anymore when hooked up the PTT line. So I suggest, all the guys having the problems, investigate what your hookups you have remove all of them, and try with Tune or VAC to power up the system and see if it still exists. Again here it helped. I wrote this mail as I still see no cure with all the Soft - Firmware correction. 73 Chris HB9BDM ___ 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] 2008/Feb/23 FRF TeamSpeak audio
The 23/Feb Flex Radio Friends TeamSpeak zipped mp3 (1 hour) plus a .txt file of the channel comments is available at: http://www.hamsdr.com/dnld.aspx?id=742 or http://www.hamsdr.com/dnld.aspx Record time was 2:09 Mike - AA8K ___ 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] Radio Test Issues
NC0B: Comments on testing radios. One can test radios with really clean OCXOs, but that does not give much flexibility. W6RMK: Unless you're independently wealthy and can afford a whole batch of oscillatorsgrin When that person steps forward, the following would be an interesting receiver test (simulates a contest like the CQ 160 CW): Space S9+30 carriers every 500 Hz and measure the change in noise floor while cycling them on and off. Next step would be to key the signals on and off (unsynchronized). An equivalent test for SSB would use spacing every 2 kHz, but adding modulation to simulate an SSB signal. The tests we have (IMD, BDR, Phase Noise...all using very pure continuous sources) are woefully inadequate to simulate the real world of transmitted phase noise, key clicks, SSB IMD splatter, etc. Rather than just 2 pure tones for IMD tests, it would be interesting to see the combined effect of many. Seems like you would get an additive effect from phase noise over a very wide bandwidth. 73, Bill W4ZV ___ 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] Radio Test Issues
Quoting Bill Tippett [EMAIL PROTECTED], on Sat 23 Feb 2008 06:56:18 AM PST: NC0B: Comments on testing radios. One can test radios with really clean OCXOs, but that does not give much flexibility. W6RMK: Unless you're independently wealthy and can afford a whole batch of oscillatorsgrin When that person steps forward, the following would be an interesting receiver test (simulates a contest like the CQ 160 CW): Space S9+30 carriers every 500 Hz and measure the change in noise floor while cycling them on and off. Next step would be to key the signals on and off (unsynchronized). S9+30 = about -47dBm? Typical XOs put out around +10 dBm, so a 60 dB pad will get it to the right level, and has the advantage of providing 120dB isolation between oscillators. For this experiment, one wouldn't need fancy OCXOs, either. Just very clean oscillators. You might be able to get by with low jitter DIP packaged oscillators (like the one in the SDR1000), and just get a bunch of them, hoping they're spread out enough. An equivalent test for SSB would use spacing every 2 kHz, but adding modulation to simulate an SSB signal. Your suggested tests are very much like the noise power notch test, which has been around for decades (first used in carrier telephony, I believe). You put a wideband noise signal into the device under test. Then, you notch out a subband (typically a 3 kHz wide voice channel). You measure the two different powers going into the UUT (unnotched and notched). Then, you measure the two different powers coming out of the UUT. If the device is linear, then the ratios unnotched to notched should be the same. If there is IMD, then the notched power coming out is too high (i.e. spectral regrowth has filled in the notch) You can also do it by making a narrow band measurement in the notch. ___ 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] FW: SDR 1000 mkI - crashed and burned? Or A dire call for help
Hi again fellow Flexers! To continue the story below I lifted pins 9 and 8 on IC4C and connected pins 1 and 2 instead and re-connected pin 13 on IC 1 on the PIO board and pin 10 on IC 1 on the BPF board after finding I had TX/RX 5V on J5 pins 4 and 5 again - and thus I actually got T/R switching up and running again. Well, did this solve the dead (almost dead) reciever? Not exactly, but I got about 20dB closer to a live reciever by the look of it, but where are the missing still 70 or 80dB - burned INA?? It does get fed +/- 14.7V as measured on J5 so shouldn't it do the business?? I have TX, though only about 400mW in the -10dBV setting of my Delta 44, can squeeze out a full watt at the expense of some distortion when it's lifted to consumer level, indicating something is overdriven at this level, maybe the DRV 135's?? Is 400mW key down power common when running this unit from a 12V DC source? So where does all this lead? Well, some advice from someone who knows what he/she is talking about is most certainly still highly appreciated! It's somewhat frustrating at the moment, haven't been able to get hold of anyone who understands these digital circuits better than I do (which I am afraid leaves a lot to be desired). Another thing that bugs me is; What the heck caused this to happen in the first place? I sure would like find out, preferably not the hard way again! But first of all I would love to have this wonderful reciever back on-line, spuriouses, frequency drift, BC noise on 160M, warts and all, I truly miss its close in performance on a crowded European slice of the 80M band! Thanks in advance to any respondee, your help is as you can see just about invaluable ;-) OZ0FT, Frank Had my unit (2003 vintage that I just acquired recently as a half finished project including the original case) temporarily set up with a 5V TX relay with an anti-transient diode across the coil connected to pin 7 and 8 on J5 to key a 20W amplifier relay and was running an initial check on my low pass filter board switching scheme also with 5V relays (2 per band). At a point during my experiments the 5V TX relay stayed keyed as the ground signal on pin 7 didn’t drop when I switched back to receive. The band switch relays were/are still operational. I lifted pin 10 on the ULN2003 (IC1 on the BPF board) to release K13, but no signals heard on the receiver. I then did the same with pin 13 on the 74AC5745 (IC1 on the PIO board) as I found it was in TX state with 5V out. This still didn’t solve the constant TX state problem. I suspect IC4C (PIO board) pins 9 and 8 is the culprit as the TX line is constantly on wherever I measure (checked the output to the TRX board on J5 pin 5 - yep, sure enough: 5V) Will lifting pin 9 do the trick, so I can carry on with the troubleshooting, I wonder. Or have I indeed sadly fried the whole setup here? I am not too keen on keeping de-soldering pins on IC’s as I dive deeper into the unit before someone with a bit more insight hopefully sees this and passes on some very much appreciated advice (don’t tell me to ditch the unit please, this rig has moved this hams expectations in radio to a whole new level, what a fantastic radio (Delta 44 here) – period) By the way, I hooked up my old Boonton signal generator and at 0dBm output from it, I measure a signal of -90 to -100dBm, depending on band, on the panadapter, so it seems the receive line is still alive even though it apparently isn’t being powered. Transmit worked before I de-soldered the above mentioned pins, a bit low on power though and with some strange noise on 160M that wasn’t present on the other bands. This was a bit of a long over, hope a fellow SDR 1000 aficionado out there can and will help out none the less. Vy 73 de OZ0FT, Frank. No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.20.7/1286 - Release Date: 18-02-2008 18:49 No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.20.8/1288 - Release Date: 19-02-2008 20:47 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.20.9/1294 - Release Date: 22-02-2008 18:39 ___ 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] E-mail Address for KA9YIG
I need to purchase a Delta 44 Breakout Box Replacement. Does anybody have the e-mail address for KA9YIG? I am not finding it in the Knowledge Base or QRZ.com John, AI6A [EMAIL PROTECTED] ___ 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] (no subject)
I was trying to operate in the NAQP-RTTY contest this weekend kept running into a PowerSDR crash with my Flex-5000A. Periodically the following error message would appear: An exception 'System.ExecutionEngineException' has occurred in PowerSDR.exe. While the message was displayed, PowerSDR was still receiving signals. (Audio in the speakers.) The error message window would ask if I wanted to debug the program. When I clicked on No, the PowerSDR console window would close. However, the PowerSDR.exe process was still running. I would have to open Task Manager to kill the process before I could restart the console resume operation. This ONLY happens when I am running Ham Radio Deluxe Digital Master 780 at the same time as PowerSDR. I have not tried running HRD without having DM780 running also, so I do not know if the problem is when HRD is active, when DM780 is active, or both. The problem is intermittent, but occurs often enough to kill my interest in continuing in the contest. Sometimes everything would be fine for several minutes sometimes it would crash after only a few seconds. The versions of the programs that I am running are: PowerSDR: v1.10.4 Flex-5000A Firmware: 0.1.1.10 Ham Radio Deluxe: v3.5 build 1686 Beta Digital Master 780: v1.1 Beta build 1696 PC is an HP Media Center Model m8200n w/AMD Athlon 64 X2 Dual Core Processor, 3.0 GHz, 3 GB RAM, running Vista Home Premium. DM780 is connected to PowerSDR using VAC 4.08. HRD is connected to PowerSDR using vCOM 2.26a. DM780 is connected to HRD via TCP/IP. DM780 is set to use HRD for PTT. HRD uses CAT to key the radio. I operated the NAQP-RTTY contest last summer the CQ WW RTTY contest last fall with absolutely no problems. However, I was using an SDR-1000 with earlier versions of PowerSDR, HRD, DM780. Anyone have any thoughts or ideas on this problem? 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] PowerSDR Crashes w/Ham Radio Deluxe Digital Master 780
Sorry about the duplication, but forgot a subject line the 1st time. I was trying to operate in the NAQP-RTTY contest this weekend kept running into a PowerSDR crash with my Flex-5000A. Periodically the following error message would appear: An exception 'System.ExecutionEngineException' has occurred in PowerSDR.exe. While the message was displayed, PowerSDR was still receiving signals. (Audio in the speakers.) The error message window would ask if I wanted to debug the program. When I clicked on No, the PowerSDR console window would close. However, the PowerSDR.exe process was still running. I would have to open Task Manager to kill the process before I could restart the console resume operation. This ONLY happens when I am running Ham Radio Deluxe Digital Master 780 at the same time as PowerSDR. I have not tried running HRD without having DM780 running also, so I do not know if the problem is when HRD is active, when DM780 is active, or both. The problem is intermittent, but occurs often enough to kill my interest in continuing in the contest. Sometimes everything would be fine for several minutes sometimes it would crash after only a few seconds. The versions of the programs that I am running are: PowerSDR: v1.10.4 Flex-5000A Firmware: 0.1.1.10 Ham Radio Deluxe: v3.5 build 1686 Beta Digital Master 780: v1.1 Beta build 1696 PC is an HP Media Center Model m8200n w/AMD Athlon 64 X2 Dual Core Processor, 3.0 GHz, 3 GB RAM, running Vista Home Premium. DM780 is connected to PowerSDR using VAC 4.08. HRD is connected to PowerSDR using vCOM 2.26a. DM780 is connected to HRD via TCP/IP. DM780 is set to use HRD for PTT. HRD uses CAT to key the radio. I operated the NAQP-RTTY contest last summer the CQ WW RTTY contest last fall with absolutely no problems. However, I was using an SDR-1000 with earlier versions of PowerSDR, HRD, DM780. Anyone have any thoughts or ideas on this problem? 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] Sunday Flex Discussion Net, 14.329 @ 1PM Central (1900 UTC)
Just a reminder of the Flex SDR Discussion Net on 20 meters @ 1 PM Central .. Also on QSOnet.com with the CQ-100 interface on the Internet at 14.329 also. I am sorry that I was available last weekend, I had a bad case of flu, and just could not make the net, but should be there Sunday with my Flex-5000A tied to the Internet. 73, Dudley WA5QPZ ___ 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] Transmit profile
I have created several profiles for rtty one using 1500 as the center freq and the other using 2210 as the center freq. Both with a width of 400hz. The problem I encounter is the 2210 filter with a high of 2410 and a low of 2010 can not seem to hold the low frequencey. It always changes to 1650hz for the low even though I save the profile and apply it. It changes even though I try to save it back to what I originally wanted. Why would this happen? This is the 5000A running 1.10.4. 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://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
