[600MRG] Free Motorola Channel modem Works as VFO + USB

[Pat Hamel]

Free for postage. 
It looks like nobody wants the entire WD2XSH/6 station package, so here is a
piece.
I have a Motorola "Channel modem" with some documentation that I used on
PSK. This is the same USB generator that Ralph /7 used to run his station.
Basically it will generate a signal on a very stable frequency that you can
modulate to produce USB and vary the audio tone to vary the output
frequency.
For example the 472kc setting with 3700 audio would produce the WSPR
frequency.
The board is in a chassis with power supply, level controls, and
connections.
It also has a reception channel, so the entire station may be built around
it.
73 and merry Christmas,
Pat /6