Hi gang.

I am trying to simulate what happens, if a CW transceiver is used to generate 
BPSK31 signal. I modified my PocketDigi software to generate BPSK31 signal with 
arbitrary envelope, not only the raised cosine. The impact on spectral purity 
and other side receive quality may be measured.

I am trying to figure out what CW shaping is used by different QRP transceivers 
for my simulation. I tried to simulate the CW envelope of KX1 by LTspice. Dot 
is sent 31.25 times per second, which is PSK31 speed.
http://www.kufr.cz/~ok1iak/temp/KX1_CW_envelope.jpg

Is my simulation correct, or is the KX1 CW shaping circuit more complex and I 
missed something?

Thanks, Vojtech OK1IAK
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