[digitalradio] I Hate Computers and Radio!!!! Interference. Update - Got is Quiet :)
G'Day All, THANKS to everyone for your help, ideas and suggestions. I tried a couple of options, first trying my newesh ASUS laptop (6 months), this worked well and there was hardly any noise on the radio, s-meter hardly moved and was fully usable. I then tried improving the desktop, added ferrits chokes on the supply lines. This did nothing to improve things. So out came the spare computer from the garage, removed what was an ASUS power supply and connected it up to the M/B and other drives. Turned HF radio on and powered up the power supply (not the M/B), quiet Now turned on the whole computer and had a minute (just moved the s-meter, and just heard) noise, nothing to concern myself with this time, and allowed me to receive those weak signals that are around due to poor conditions. So now I have a computer in the radio roomthat will allow me to operate both at the same time. I will improve it further when I get the earth matting completed. Only problem I have now it seems that down this way 7080 and surrounding appears to be used for voice, difficult to operate digital, but persevering (sorry for my spelling it's late) Regards and Thanks. Kevin. ZL1KFM.
[digitalradio] Overnight 7080 MH list
FYI from FN02hk 7080 2009/09/30 08:35:30 K7EK 2009/09/30 07:32:06 AF5T 2009/09/30 06:35:00 W0RLI 2009/09/30 06:29:31 WB6YTE 2009/09/30 06:24:37 W7BO 2009/09/30 05:47:20 KG4VUB 2009/09/30 04:35:37 VE3VAI 2009/09/30 04:28:42 KD7PAJ 2009/09/30 03:59:20 W9IB 2009/09/30 03:49:55 W7DMR 2009/09/30 01:28:21 N1CPE 2009/09/30 01:24:25 N9DSJ
Re: [digitalradio] Overnight 7080 MH list
Lots of familiar calls in there. What mode was this? FYI from FN02hk 7080 2009/09/30 08:35:30 K7EK 2009/09/30 07:32:06 AF5T 2009/09/30 06:35:00 W0RLI 2009/09/30 06:29:31 WB6YTE 2009/09/30 06:24:37 W7BO 2009/09/30 05:47:20 KG4VUB 2009/09/30 04:35:37 VE3VAI 2009/09/30 04:28:42 KD7PAJ 2009/09/30 03:59:20 W9IB 2009/09/30 03:49:55 W7DMR 2009/09/30 01:28:21 N1CPE 2009/09/30 01:24:25 N9DSJ
[digitalradio] ALE-400 Skeds
All, I'll be QRV ALE-400 in the evenings on 20 meters. My station will not be left unattended so please see Andy's sked page for activity. Skeds welcome via email @ d...@otponline.net QRG - 14106.0 USB DIAL Testing - ALE-400 sounding / connects / chat mode QSO / mail transfers. Sked Page - http://www.obriensweb.com/sked/ Tony -K2MO
RE: [digitalradio] ALE-400 Skeds
tried just now (2200UTC) nothing yet. Ve5EOC and VE5MU both listening John VE5MU From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of Tony Sent: Wednesday, September 30, 2009 3:41 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] ALE-400 Skeds All, I'll be QRV ALE-400 in the evenings on 20 meters. My station will not be left unattended so please see Andy's sked page for activity. Skeds welcome via email @ mailto:d...@otponline.net d...@otponline.net QRG - 14106.0 USB DIAL Testing - ALE-400 sounding / connects / chat mode QSO / mail transfers. Sked Page - http://www.obriensweb.com/sked/ http://www.obriensweb.com/sked/ Tony -K2MO
Re: [digitalradio] Overnight 7080 MH list
That would be WINMOR. I see my call in there! -Josh KD7PAJ Lots of familiar calls in there. What mode was this? FYI from FN02hk 7080 2009/09/30 08:35:30 K7EK 2009/09/30 07:32:06 AF5T 2009/09/30 06:35:00 W0RLI 2009/09/30 06:29:31 WB6YTE 2009/09/30 06:24:37 W7BO 2009/09/30 05:47:20 KG4VUB 2009/09/30 04:35:37 VE3VAI 2009/09/30 04:28:42 KD7PAJ 2009/09/30 03:59:20 W9IB 2009/09/30 03:49:55 W7DMR 2009/09/30 01:28:21 N1CPE 2009/09/30 01:24:25 N9DSJ
Re: [digitalradio] ALE-400 Skeds
I will be attempting to set up Email via ALE400 tonight. Andy K3UK On Wed, Sep 30, 2009 at 5:53 PM, John Bradley jbrad...@sasktel.net wrote: tried just now (2200UTC) nothing yet. Ve5EOC and VE5MU both listening John VE5MU *From:* digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] *On Behalf Of *Tony *Sent:* Wednesday, September 30, 2009 3:41 PM *To:* digitalradio@yahoogroups.com *Subject:* [digitalradio] ALE-400 Skeds All, I'll be QRV ALE-400 in the evenings on 20 meters. My station will not be left unattended so please see Andy's sked page for activity. Skeds welcome via email @ d...@otponline.net QRG - 14106.0 USB DIAL Testing - ALE-400 sounding / connects / chat mode QSO / mail transfers. Sked Page - http://www.obriensweb.com/sked/ Tony -K2MO -- Andy
Re: [digitalradio] ALE-400 Skeds
Andy, Long chat with Jose (CO2JA) on ALE-400 this evening. He was running his 10 watt Manpack rig and G5RV. Tony -K2MO - Original Message - From: Andrew O'Brien andrewob...@gmail.com To: digitalradio@yahoogroups.com Sent: Wednesday, September 30, 2009 6:49 PM Subject: Re: [digitalradio] ALE-400 Skeds I will be attempting to set up Email via ALE400 tonight. Andy K3UK On Wed, Sep 30, 2009 at 5:53 PM, John Bradley jbrad...@sasktel.net wrote: tried just now (2200UTC) nothing yet. Ve5EOC and VE5MU both listening John VE5MU *From:* digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] *On Behalf Of *Tony *Sent:* Wednesday, September 30, 2009 3:41 PM *To:* digitalradio@yahoogroups.com *Subject:* [digitalradio] ALE-400 Skeds All, I'll be QRV ALE-400 in the evenings on 20 meters. My station will not be left unattended so please see Andy's sked page for activity. Skeds welcome via email @ d...@otponline.net QRG - 14106.0 USB DIAL Testing - ALE-400 sounding / connects / chat mode QSO / mail transfers. Sked Page - http://www.obriensweb.com/sked/ Tony -K2MO -- Andy
[digitalradio] Re: [WINMOR] Winmor setup - sound card AND transmitter audio
Andy, but why 60% as opposed to 70 or 20 ? Rick can answer that better than I can, but I believe the 60% two-tone drive limit was established to prevent the multi-tone PSK mode peaks from overdriving the transmitter. Setting the two-tone level to 20% will just lower RF output, but going over 60% can cause problems; distortion / splattering. Tony -K2MO - Original Message - From: Andy obrien k3uka...@gmail.com To: win...@yahoogroups.com Sent: Tuesday, September 29, 2009 11:47 PM Subject: Re: [WINMOR] Winmor setup - sound card AND transmitter audio but why 60% as opposed to 70 or 20 ? Andy K3UK On Tue, Sep 29, 2009 at 10:53 PM, Tony d...@optonline.net wrote: 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. [Non-text portions of this message have been removed]
RE: [digitalradio] ALE-400 Skeds
Had a long chat with Tony, doing some interesting tests. Could hear (barely) Jose . wanted to work him but maybe next time Jose, John VE5MU From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of Tony Sent: Wednesday, September 30, 2009 6:33 PM To: digitalradio@yahoogroups.com Subject: Re: [digitalradio] ALE-400 Skeds Andy, Long chat with Jose (CO2JA) on ALE-400 this evening. He was running his 10 watt Manpack rig and G5RV. Tony -K2MO - Original Message - From: Andrew O'Brien mailto:andrewob...@gmail.com andrewob...@gmail.com To: mailto:digitalradio@yahoogroups.com digitalradio@yahoogroups.com Sent: Wednesday, September 30, 2009 6:49 PM Subject: Re: [digitalradio] ALE-400 Skeds I will be attempting to set up Email via ALE400 tonight. Andy K3UK On Wed, Sep 30, 2009 at 5:53 PM, John Bradley mailto:jbrad...@sasktel.net jbrad...@sasktel.net wrote: tried just now (2200UTC) nothing yet. Ve5EOC and VE5MU both listening John VE5MU *From:* mailto:digitalradio@yahoogroups.com digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] *On Behalf Of *Tony *Sent:* Wednesday, September 30, 2009 3:41 PM *To:* mailto:digitalradio@yahoogroups.com digitalradio@yahoogroups.com *Subject:* [digitalradio] ALE-400 Skeds All, I'll be QRV ALE-400 in the evenings on 20 meters. My station will not be left unattended so please see Andy's sked page for activity. Skeds welcome via email @ mailto:d...@otponline.net d...@otponline.net QRG - 14106.0 USB DIAL Testing - ALE-400 sounding / connects / chat mode QSO / mail transfers. Sked Page - http://www.obriensweb.com/sked/ http://www.obriensweb.com/sked/ Tony -K2MO -- Andy
Re: [digitalradio] Re: Winmor Path Simulaitons
Dick, It will be interesting to see how your results alter with version 0.3.2.0 and future versions when released. Dick G4BBH Unfortunately, I haven't figured out a way to test ARQ modes like Winmor without a more elaborate setup than the sound card path simulator. I can only record / playback and test Winmors connect request mode. Two PC's and an outboard HF simulator between them would be useful for this sort of thing. It would allow one to test other modes like ALE-400 ARQ. I should be able to use virtual audio cable to record my own signals straight from the sound card during a live Winmor connect / file transfer and that would allow me to capture the different modes as Winmor cycles through them. I can then use those one-sided signals to see how they perform with various HF path simulations. The problem is that Winmor might not acknowledge those signals, but the constellation score might. That should give some indication of how good or bad throughput might be. Tony -K2MO - Original Message - From: ferrymanr g4...@btinternet.com To: digitalradio@yahoogroups.com Sent: Tuesday, September 29, 2009 6:43 AM Subject: [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. --- 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] Multipsks ALE-400 - Simultaneous mail transfers and more.
All, John (VE5MU) and I had a lengthy ALE-400 contact this evening and we decided to experiment a bit. We found that while I was sending mail to John (mail gets stored in Multipsks mailbox) he was able to continue chatting with me. In other words, he was able to type messages and I was able to see them while my outgoing mail was being transferred. Of course, the conversation was one-sided until the mail transfer completed; Multipsk automatically switched back to two-way ARQ chat mode after that. We also found that it was possible to send mail to each other SIMULTANEOUSLY. This slowed the transfer down of course since the usually short acknowledgments from the receiving station turned into ACK + mail data. Patrick's Multipsk / ALE-400 is certainly unique. The mode itself seems to have a good balance between robust performance and speed. Tony -K2MO
