17 Jul
2003
17 Jul
'03
12:02 p.m.
nerdware(a)ctgonline.org wrote:
I've been Googling for a while, but most tiny transmitters are either
for "spy" audio apps, or are multi-button jobs for garage doors and
things like that. All I need is a simple on/off fm transmitter that
controls a simple relay on the receiver end, preferably powered by
a couple of AA cells or similar, and the transmitter needs to be
hackable so I can connect the wheel-mounted ptt switch.
It should be fairly trivial and inexpensive to use a wireless FM lapel
mike. The ones I've had were about 2" long and maybe 3/4" square. The
bigger problem would be to keep interference from keying your
transceiver, *especially* if you left it turned on in the vehicle.
Adding PL encode/decode might be one fairly inexpensive way of dealing
with that problem.