Hi David,
as far as I know 90% of all 136kHz transmitters used in Europe are straight
CW transmitters with no possibility to modulate SSB. So the most easy (and
efficient) way to get QRSS is just keying the TX, for DFCW you can FSK the
oscillator.
But I intend to make the QRS software as versatile as possible (within
reasonable limits) so the next version will probably have soundcard output
facilities, but with the option to disable this part in case you encounter
conflicts with other software using the soundcard.
73, Rik ON7YD
At 00:29 8/02/01 -0000, you wrote:
good info, but the questions beg to be asked...if audio tones can be used
for afsk on all these digimodes, why not vfsk/dfcw/qrss etc. the audio is
just audio. while i know that there is some small problems with overdriving
the tx and generating spurious tones, why can not vfsk/dfsk use the same
techniques as all the other modes?
i confess i am not a programmer, so dont know about what is involved, but if
one program can do it and not cause problems, then another could also be
made to act the same.
david
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