On 11 Sep 2006 03:01:49 -0700, "Telstar Electronics"
wrote in
. com:


Frank Gilliland wrote:
Or, if the extra
wire is too expensive, how about modifying the radio to superimpose a
DC keying signal onto the coax that can be detected by the amp?

This is exactly how the "multiplexed switching "capabilities of the
SkyWave amplifiers work...


But I thought you said the modification required "no additional
wiring"?