Easier...cheaper...probable Kitplanes column...

Go down to Walmart and buy one of those $29 synthesized FM transmitters that
is intended to take the output of a CDROM and broadcast it throughout the
house. Modulate it with the speaker or phones output of the UNICOM radio
inside the FBO...with wires as long as necessary to put the transmitter up
high enough to cover the parking lot.

No more fooling around necessary.

Jim




"Bob Chilcoat" wrote in message
...
Jim,

Like a lot of small airports, we have quite a few people who park in the
parking lot, frequently on their lunch hours, to watch the airplanes land
and take off. It would be a nice PR opportunity if they could listen to
the
CTAF while they're there. I've been thinking about a simple repeater that
would pick up the local CTAF chatter and retransmit it onto the FM band so
that they could tune their car radios in to listen. Would a simple VHF
receiver circuit be selective enough to pick up a single frequency in the
aviation band? There are a few two-transistor regenerative receiver
circuits around for the receiver portion, and quite a few simple FM
"wireless mic" circuits for the low-power transmitter part. IIRC, the FCC
allows a few milliwatts (microwatts?) to be broadcast in the FM band
without
a license.

Alternatively we may just buy a cheap Rat Shack scanner and a cheap
wireless
mic, hook them together and be done with it, but I thought that a kit of
parts to make such a device might be popular. Just a thought.

--
Bob (Chief Pilot, White Knuckle Airways)