All:
Does anyone know the approximate bandwidth for
injected audio tone high speed CW? Is there a way
to calculate this?
Thanks,
Tony KT2Q
*WHAT IS THE BANDWIDTH OF HIGHER-SPEED HSCW? ISN'T IT MUCH WIDER THAN
STANDARD FILTERS CAN PASS?
The formula given for the bandwidth of a standard CW signal, Bn=B*K, is
based on make-break ICW, the on-off keying of a carrier, with the leading
and trailing edge of the individual characters
Tony,
You should convert WPM to bauds to apply the formula.
Simpler, and hoping for the best, use a 1500 Hz keyed tone, it allows
for symmetric keying sidebands. As in PSK, do not overdrive anything
in the TX chain, and you should get a pretty decent signal.
With 1200 Hz wide sidebands, you
