As many of you know, Jay Rusgrove and I have been running tests on a variety of keyboard modes for use in the 500 kHz area. Our focus has been on modes that work well for casual QSO's and possibly em
Graham, I think you will find , olivia runs more than one tone at any one time and produces a 'two tone test' envelope , simple check, view the sound card o/p on a scope ? (Belated reply...) Yes, you
Interesting , John, I don't think I got round to running those two, they are coded in multipsk , but from experience 'wide' systems didn't appear to travel very well on 500 . The systems that I liste
Graham, I don't think I got round to running those two, they are coded in multipsk , but from experience 'wide' systems didn't appear to travel very well on 500 . The systems that I listed are simple
I spent a while last year looking for modes that would go through these 'Meat grinder' transmission systems , only found , RTTY , Amtor arq/fec, Pactor arq/fec and Hf Packet , 'hell' of course , but
Graham, Again, with the dangers of replying from work...<g> You should be able to run MFSK 8 or 16 through your grinder...those are single-tone-at-a-time systems, and have very nice FEC for this sort
Thanks for that, I have sent a copy of the screen capture of the windows error code, to the above email address as a 27kb jpeg, I have a similar problem with the original stream software by IZ8BLY ,
Ok John, I spent a while last year looking for modes that would go through these 'Meat grinder' transmission systems , only found , RTTY , Amtor arq/fec, Pactor arq/fec and Hf Packet , 'hell' of cour
Dear ++ (Graham), <g> I think that Olivia uses sequential FSK, not simultaneous tones. I don't believe that Jay and I evaluated any simultaneous systems. We did use linear PA's during the tests, but
Alberto, Thanks for that, I have sent a copy of the screen capture of the windows error code, to the above email address as a 27kb jpeg, I have a similar problem with the original stream software by
John, I think you will find , olivia runs more than one tone at any one time and produces a 'two tone test' envelope , simple check, view the sound card o/p on a scope ? I had a conversation with Sim
Interesting list of modes and tests , ''Comments: Several European operators ++ have experimented with 45 Baud RTTY using a narrow 23 Hz shift, with decent results. Our tests, however, had limited su
