[digitalradio] Winmor Path Simulaitons
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
Re: [digitalradio] Winmor Path Simulaitons
Thanks Tony. Your caveats aside, a mode that performs about the same as PSK63 for a connect but then appears to have worse performance during message transfers is not very promising. Hopefully they can get to around MFSK16 performance as things are tweaked. Andy K3UK On Mon, Sep 28, 2009 at 4:58 AM, Tony d...@optonline.net 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
[digitalradio] Re: Winmor Path Simulaitons
--- 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. Thanks, Tony. Very educational. I made some Winmor contacts over the weekend. It isn't easy. You need really good link margin and little fading to make it work compared to the modes that have spoiled us (MT63, Olivia, etc.) I would be interested to know what those who have a lot of high-end packet experience (not me) like Pactor 3 think of Winmor. Sadly I bet anyone with a high-end packet TNC probably won't bother :-) k*b*l*0*0*q P.S. I posted a much longer review of my experiences over on the Winmor yahoo group.
Re: [digitalradio] Re: Winmor Path Simulaitons
I wonder the same thing. I heard a long PACTOR exchange near 7080 last night when you were linked to someone via WINMOR. I was wondering how they were doing compered to you.. In fact I even thought of getting out an old TNC that has Pactor 1 on it to give it a try, but thought of wiring up 13 and 8 pin DIN connectors put me off. Andy K3UK On Mon, Sep 28, 2009 at 7:17 AM, aa777888athotmaildotcom aa777...@hotmail.com wrote: --- In digitalradio@yahoogroups.com digitalradio%40yahoogroups.com, Tony d...@... wrote: I would be interested to know what those who have a lot of high-end packet experience (not me) like Pactor 3 think of Winmor. Sadly I bet anyone with a high-end packet TNC probably won't bother :-) k*b*l*0*0*q
[digitalradio] ALE400 testing
at 1600UTC, VE5EOC on 10141.5. VE5MU on 14078.0 , both running ALE400 1625hz center please try a connect or three john VE5MU
Re: [digitalradio] ALE400 testing
On Mon, Sep 28, 2009 at 01:04:01PM -0600, John Bradley wrote: using the selective call function under Auxillary Functions, enter my call (VE5MU) on your station list, and sue selective call to connect. Wow! I hadn't realized that Canada was so litigious. Thanks, John. I learned something about the program function from your note. -- Mike Andrews, W5EGO mi...@mikea.ath.cx Tired old sysadmin
RE: [digitalradio] ALE400 testing
ROFLMAO ! good one!! amazing what a typo can do 73's John VE5MU From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of mikea Sent: Monday, September 28, 2009 1:09 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] ALE400 testing On Mon, Sep 28, 2009 at 01:04:01PM -0600, John Bradley wrote: using the selective call function under Auxillary Functions, enter my call (VE5MU) on your station list, and sue selective call to connect. Wow! I hadn't realized that Canada was so litigious. Thanks, John. I learned something about the program function from your note. -- Mike Andrews, W5EGO mi...@mikea.ath.cx mailto:mikea%40mikea.ath.cx Tired old sysadmin
[digitalradio] ALE-400 Testing Resumes
All, I'll be QRV ALE-400 each evening for the rest of this week starting tonight. My station will not be left unattended so please see Andy's sked page for activity. Skeds welcome @ d...@otponline.net QRG - 14106.0 USB Testing - ALE-400 sounding / connects / chat mode QSO / mail transfers etc. Sked Page - http://www.obriensweb.com/sked/ Tony -K2MO
Re: [digitalradio] Re: What's up with FLDIGI
I just did this again but it then wants me to configure all over again. I configured all over again, after 10 seconds (or less) of working and displaying rig frequency, FLDIGI closes. Andy K3UK On Tue, Sep 22, 2009 at 7:58 AM, kh6ty kh...@comcast.net wrote: Without fldigi running, you can also just search for fldigi.files, delete fldigi_def.xml and fldigi.prefs, and then run fldigi, but I guess you have already done that since it is now working. Anytime you reinstall fldigi it is best to delete fldigi_def.xml and fldigi.prefs before running the new version. 73 Skip KH6TY obrienaj wrote: Thanks Skip, all is well now. Andy -- *Skip KH6TY* http://KH6TY.home.comcast.net -- Andy
[digitalradio] Re: ALE-400 Testing Resumes
QRV - 14106.0 ALE-400 - 2330z - till the band closes. Tony -K2MO
Re: [digitalradio] Re: What's up with FLDIGI
HAMLIB On Mon, Sep 28, 2009 at 6:36 PM, kh6ty kh...@comcast.net wrote: Andy are you using fldigi for rig control?
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
Re: [digitalradio] Re: What's up with FLDIGI
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, Andrew O'Brien andrewob...@... wrote: Skip, there is no TS2000 XML file for RIGCAT. I'll play around some more. Andy K3UK Skip, In poking around with HAMLIB (which I had working fine in earlier versions) I disccivered that RIG CONTROL and use of FLDIGI works just fine with the TS-2000 and my XP PC until I click on the tiny PTT diamond in HAMLIB, then it crashes. Will play some more. Andy K3UK
[digitalradio] Re: What's up with FLDIGI
My poking payed off. I am using HAMLIB for rig control but did not use HAMLIB for PTT, instead I chose hardware PTT and set up a PTT port. Works just fine. I should have thought of that before. Andy K3UK Skip, In poking around with HAMLIB (which I had working fine in earlier versions) I disccivered that RIG CONTROL and use of FLDIGI works just fine with the TS-2000 and my XP PC until I click on the tiny PTT diamond in HAMLIB, then it crashes. Will play some more. Andy K3UK
[digitalradio] QRV 7073 USB FLARQ BEACON
QRV 7073 USB FLARQ BEACON , every 5 minutes until 0300. Andy K3UK FN02
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
