> Has anyone on the list adapted a modern controller for > frequency-shift keying?
I've taken a CWID'er and, combined with an LM386 audio amp, did "collector
modulated" CW for link ID'ing by AC-coupling the CW audio into the power
control circuitry. In broadcast we do FSK ID'ing, as well as MCW/AM, on FM
translators. Works nice, and, when done right, isn't audible on an FM
receiver.
--- Jeff
