[digitalradio] Fast Transfer
All, Winmor managed 298 bytes / minute while connected to EA2AFR on the 20 meter band. See log below. Tony -K2MO *** No HF RMS WINMOR enabled stations found *** Disconnected at 2009/09/28 22:10:05 *** Connect Request to EA2AFR at 2009/09/28 22:10:21 *** Connected to: EA2AFR @ 500 Hz at 2009/09/28 22:10:30 [RMS Express-0.2.0.2-B2F] K2MO DE EA2AFR (IN83MH) [RMS Express-0.2.0.2-B2F] EA2AFR DE K2MO (FN30JV) FC EM TGPVLWRDDU9S 432 340 0 FS Y *** Sending TGPVLWRDDU9S... FF FQ *** Session End *** Disconnected at 2009/09/28 22:12:13 [Session Stats:] Duration: 1.73 min Bandwidth: 500Mode Shifts: 1 Decode Attempts: 8 Weak R-S Decodes : 6 Weak R-S Sums: 0 Strong R-S Decodes: 1 Strong R-S Sums:0 Bytes Sent : 452Bytes Received:62 Thuput(bytes/min): 298
Re: [digitalradio] ALE400 testing
John, OK John - hope to see you there - thanks. Tony -K2MO - Original Message - From: John Bradley jbrad...@sasktel.net To: digitalradio@yahoogroups.com Sent: Monday, September 28, 2009 10:49 PM Subject: RE: [digitalradio] ALE400 testing moved up and just before I left saw u on 14106. Will stay on 14106 until further notice..will be around tomorrow afternoon for QSO. May be over doing some work on EOC John VE5MU From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of Tony Sent: Monday, September 28, 2009 6:24 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] ALE400 testing John, VE5MU on 14078.0 running ALE400. Please try a connect Easy connect / mail transfer John - left you a message. Are you available this evening for a 20 meter ALE400 chat? Tony -K2MO
[digitalradio] Re: Winmor Path Simulaitons
A new version of RMS Express has just been released (29 September) and may affect things considerably once users have updated as there are several changes. It will be interesting to see how your results alter with version 0.3.2.0 and future versions when released. Dick G4BBH --- In digitalradio@yahoogroups.com, Tony d...@... wrote: All, For what it's worth, I ran Winmor connect request signals through Moe Wheatley's path simulator. These tests are usually pretty good indicators of how digital modes perform and compare over a real HF channel. That said, the results of these tests may not reflect Winmors real potential so take them with a grain of salt. Running the path simulator on the same PC as I did with a mode that's sensitive to sound card performance and CPU usage is probably not the best for optimum results. I haven't figured out a way to test Winmor other than the connect request PSK mode so these tests are at best, a glimpse of what to expect when connecting with other stations under a variety of conditions; sound card issues aside. I should point out that some of these HF path simulations are severe with enough signal distortion to make one slow to a snails pace, even on CW! Tony -K2MO _ Minimum signal-to-noise: The minimum SNR (white noise test) was approximately -6db / 3KHz BW. About the same sensitivity as PSK63. + HF Path Simulation Tests: In the following tests, the path simulators signal-to-noise ratio was set a fixed level of +6db. This produced a Winmor connect request score of 85% with 100% decode (no HF path distortion). + Selective fade performance: In this test, the simulator produces a deep notch that randomly sweeps across the spectrum simulating multipath conditions. The mode connected 75 percent of the time. Simulation: Selective Fading Path delay: Path #1 (0) Path#2 - 0.5ms, Path#3 - 0.6ms Frequency spread: Path #1 0.5Hz, Path #2 0.55Hz, Path #3 0.6Hz CONNECT REQUESTS: 75% DECODE ++ This High Latitude path test simulates a moderate disturbance over the polar ionosphere. The 10Hz signal spread causes the majority of digital modes to fail. It takes a slow MFSK mode like Olivia to get through. Simulation: High Latitude Moderate Path delay: 3ms Frequency spread: 10Hz NO DECODE SCORE - 20's + This test simulates mid-latitude HF circuits during severely disturbed conditions at mid-latitude. Winmor connects were close to 100%. Simulation: Mid-Latitude Disturbed Path delay: 2ms Frequency spread: 1Hz CONNECT REQUESTS: 90% DECODE SCORE: 80's. ++ This low Latitude path test simulates a highly disturbed Spread-F paths that occur near the equator. Once again, 10Hz signal spread / timing delays cause the majority of modes to fail. Simulation: Low-Latitude Disturbed Path Delay: 6ms Frequency Spread: 10Hz NO DECODE / SCORE - 20's ++ Winmor connected near 100% with the less severe low-latitude path. Simulation: Low-Latitude Moderate Path Delay: 2ms Frequency Spread: 2Hz CONNECT REQUESTS: 90% DECODE SCORE: 70's
[digitalradio] Re: What's up with FLDIGI
Andy, The TS-570 XML file works fine on my TS-2000 with RigCat. Ed WB6YTE --- In digitalradio@yahoogroups.com, Andrew O'Brien andrewob...@... wrote: Skip, there is no TS2000 XML file for RIGCAT. I'll play around some more. Andy K3UK
[digitalradio] Re: What's up with FLDIGI
--- In digitalradio@yahoogroups.com, ed_hekman ehek...@... wrote: Andy, The TS-570 XML file works fine on my TS-2000 with RigCat. Ed WB6YTE --- In digitalradio@yahoogroups.com, Andrew O'Brien andrewobrie@ wrote: Thanks Ed, good to know. Andy
[digitalradio] TAPR PSR Journal Call for Articles
TAPR PSR Journal Articles Available at: www.tapr.org/psr.html TAPR Event Activity Twitter Updates at: www.twitter.com/taprdigital - Forwarded Message From: Stan Horzepa stanz...@sbcglobal.net To: tapr-annou...@tapr.org Sent: Tuesday, September 29, 2009 7:49:50 AM Subject: [tapr-announce] write for PSR We are now seeking articles for the next issue of TAPR's quarterly newsletter, Packet Status Register (PSR). All contributions are welcome, so if you have anything for the newsletter, please e-mail whatever you have to me ASAP. Thank you and 73, Stan Horzepa, WA1LOU PSR Editor ___
[digitalradio] Winmor setup - sound card AND transmitter audio
All, I think it's important to mention that it's still possible to overdrive ones transmitter if the Winmor two-tone slider is the only adjustment used to reach the maximum 60% RF drive level. It's easy to overlook the ALC if you constantly switching between digital modes that might require different settings or if you need to navigate your rigs menu just to see the ALC. The perfect formula for high ALC is to set the transmitters RF output to LOW and drive the audio chain between PC and transmitter to HIGH. For example, Setting the the transmitters RF output to 60% (60 watts / 100 watt transmitter) and then increasing the audio drive from the sound card to meet that RF level will usually cause the ALC to kick in big time. Results may vary, but if the goal is to reach the maximum 60% output with the two-tone test, a good starting point might be to: 1. set the transmitter RF output to 100 watts (100w transmitter) 2. set the RIGS audio input level to a low starting point - say 25% 3. gradually increase the sound card output with two-tone until the desired RF output is reached. 4. make sure there is no ALC and do not exceed 60% output. 5. If there's not enough drive from the sound card, increase audio input at the rig. Average output power will vary as Winmor switches from FSK / PSK / CW ID modes. The rigs wattmeter will drop to it's lowest level when the multi-carrier PSK modes kick in. This is normal so don't try and compensate by increasing the drive - it will only result in distortion. Tony -K2MO
