[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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