On 2009-11-04, Pierre-François (f5bqp_pfm)
wrote:
Dear Friends,

I've a friend who own into his amplifier collection an HF Amplifier from
HARRIS model RF355 and he's trying to locate the information concerning the
commands to be sent over the serial RS232 line to drive the internal
antenna
tuner automatically.

There is a google group named "armyradios" where they talk about this
kind of thing.