Re: [digitalradio] Re: Amateur Radio in Disasters/What we really need

2007-05-09 Thread Rein Couperus
Ralph, could you elaborate on this? (if possible on the pskmail list...) so we can have a look at what's needed... What are your problems with version 0.3.0? 73, Rein PA0R My tests with PSKmail have slowed somewhat with the changeover to fldigi and the extra bells whistles that have

Re: [digitalradio] JT65A Propagation tool?

2007-05-09 Thread Tony
Andy, All good ideas. The beacon transmit sequence could start at the top of the hour and every 15 minutes after that. The 5mhz U.K. beacons (GB3RAL) use this timing. Keeping the beacons synchronized without an internet connection would be a problem, but I guess there are ways around that.

Re: [digitalradio] JT65a on 6m?

2007-05-09 Thread Tony
Dave: Is anyone using JT65a on 6 meters (or higher) for terrestrial (non-EME) Work? I've used it many times during the summertime Es season. It realy shines with very weak signals when the ionosphere is just on the fringe of supporting 6 meter signals; ionscatter etc. Tony KT2Q -

Re: [digitalradio] Re: Amateur Radio in Disasters/What we really need

2007-05-09 Thread mrfarm
I appreciate the further information from both Ralph, ZL1TBG and John, VE5MU. PSK125 would not be a very robust mode compared with most other digital modes, due to the high baud rate and no FEC. It seems from John's comments that although 141A is not quite as fast, it is more robust than

[digitalradio] 141A Ale

2007-05-09 Thread John Bradley
VE5MU will be on 7040.5 USB from Z May 9 to Z May 10th please try to connect and leave Mail. VE5GPM is off the air temporarily (minor power glitch) and will be back on by the weekend . I can move GPM to 30M for a few days if anyone is interested. John VE5MU MultPSK ver 4.3 is now

[digitalradio] : Amateur Radio in Disasters/What we really need

2007-05-09 Thread John Bradley
We are talking two different things here. Both RFSM2400 and 141A are ARQ modes, and between the two 141A seems a little more robust In non ARQ modes Olivia 2000/64 tones is absolutley amazing. True, it's slow, true, it's wide but will work way down into the weeds much further into the noise

[digitalradio] Re:Amateur Radio in Disasters/What we really need

2007-05-09 Thread expeditionradio
I received an ALE call on 7MHz from John VE5MU today at approximately 0250UTC. I was in another room, away from the radio, and heard John's call trigger my computer's speaker beeping, so I went to the keyboard. John had already sent me a short hello message by the time I reached the keyboard.