[NLRS] Harmonically related microwave frequencies
Scott
acepilot at bloomer.net
Sat Nov 19 15:47:26 EST 2005
Question:
Where exactly did the normal calling frequencies on the microwave bands
(2304.1, 3456.1, 5760.1, 10368.1) come from? Seems to me it is
harmonically derived, ie 144 X 3 = 432, etc.
I'm looking at adding bands (have 10368 now). DEMI transverter kits all
come with an external (not part of the transverter board) LO board. It
seems wasteful to have to have 4 LO boards with 4 different crystals to
run 4 microwave bands. If I set up one LO board to run at 1125 MHz (for
example), I could get signals (144 MHz IF) at 1269.1, 2394.1, 5769.1 and
10269.1 ... not the traditional frequencies, but still within band
edges. Seems I would get more bang for the buck. In fact if I ordered
3 transverter boards with parts only, I could get the fourth for free by
not having to pay for 3 LO boards. I know these wouldn't fall into the
ARRL bandplans, but being cheap, I could get on more bands without so
much approval from the local war department...
Comments?
--
Scott N0EDV
http://corbenflyer.tripod.com/
Gotta Fly or Gonna Die
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