Detecting a frequency that is busy in any of several possible
modulation schemes -- SSB, CW, PSK, RTTY, PACTOR, MFSK, HELL, etc. --
is technically non-trivial, but is feasible with today's
technology. This was demonstrated more than a year ago by Rick KN6KB
in his implementation of the SCAMP protocol.

Why has this technique not been incorporated in the software that
runs unattended automated stations? Good question.

   73,

       Dave, AA6YQ

--- In digitalradio@yahoogroups.com, Jon Maguire <[EMAIL PROTECTED]> wrote:
>
>
> http://groups.yahoo.com/group/digitalradio/message/14878
>
> How is it that these stations don't have the capability to monitor
the
> frequency used? How difficult can that be? It's a simple thing to
do
> in software.
>
> 73... Jon W1MNK
>






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