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August 13th 03, 01:40 PM

budgie wrote in message ...
On 12 Aug 2003 12:11:03 -0700, (Frank
Raffaeli) wrote:

(Allan York) wrote in message . com...
Hi, I am looking for advice on how to integrate a PIC microchip with a
ham radio transciever. I will use this in a robot. I am looking for
100 - 300 mile range. I have a ham radio license.

Thanks for the help

If you are in the U.S., review FCC rules under part 15.217 governing
operation within the 160-190 kHz band (yes it's kHz). Reliable 100
mile range is possible is some areas at limited information rates. I'm
not sure if remote control is allowed.

It would want to be a fairly large robot to accommodate an efficient
antenna system at that freq, and esp if Tx was contemplated.

Indeed it would be a large Tx antenna; however, the receiver I built
in 1974 had a ferrite rod antenna, measuring about 3 inches long,
IIRC. We received a clear audio (AM) signal above the noise from in
Detroit, Michigan from Cleveland, Ohio. The antenna at the transmitter
was 48 feet vertical suspended from fishing line between two oaks. If
Tx from a robot were required, a VHF to Longwave relay link should do
the trick.

Frank Raffaeli
AOM Wireless
http://www.aomwireless.com/

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