[Elecraft] AFSK on K3

N4BP n4bp at bellsouth.net
Mon Dec 24 15:19:17 EST 2007



I just ran some tests here.  The K3 data modes called DATA A and DATA A 
REV are working in transmit with LINE IN and should work with any 
soundcard mode, including AFSK.  The K3 data mode called AFSK appears to 
not be working properly in transmit.

Unfortunately, DATA A doesn't work very well for receiving RTTY.  The SHIFT
has to be set to the upper limit - which still doesn't reach the center of
the passband - and width can't be used below about 450 cycles.  Also, DUAL
PB is not usable.  AFSK A works perfectly for receive.  Now if only it
worked for transmit..
My hope is that this will be fixed in a firmware revision before the ARRL
RTTY Roundup on January 5/6???
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