[Lowfer] 3-way MFSK8 QSO Tonight

[Rick Kunath]

> On some transmissions, I had a strong signal but no decode.

> Jay Rusgrove wrote:
>> During one episode, I stopped and restarted the decoder after about 10
>> seconds of 'garbage' and this cleared the problem.
> 
> 
>>  Once 'in sync' the
>> decoder seemed to ride through fades with no problem and recover quickly
>> after only a few missed characters. Dex was experiencing similar sync
>> problems so we switched to MFSK16 which  provided immediate sync and no
>> further problems were noted, although we were near the end of the QSO and
>> made only one or two more transmissions.

Not sure what software everyone was using, but are the sound card Tx and 
Rx actual sample rates tested and the correction factors entered into 
the receiving and transmitting software?

Were these sound cards that natively supported the MFSK application's 
requested sample rate, or did the computer have to do re-sampling?

And what was the sample rate conversion quality slider set to (if this 
was a Windows machine, in the control panels Sounds applet)?

On a Linux machine, what audio driver and audio system (ALSA, OSS, etc.) 
were used?

Was AFC turned on or off during the test?

Rick Kunath