All this discussion about duplexer tuning and cabling is making me
wonder if I should not order a duplexer for the TKR-750 and just use
separate TX and RX antennas. Most repeaters, of course, operate on a
specific frequency pair but, since mine will be mobile and could be
set up anywhere, I'll be selecting whichever frequency pair
throughout the 2-meter band that's reserved for repeater use and
won't cause any interference with a coordinated repeater wherever I
stop. I'll have to be careful about being co-channel with anyone
within 120 miles and avoid adjacent frequencies unless I can get the
proper separation with the adjacent repeater.
By using non-ground plane antennas with magnetic mounts atop the
spacious roof of the Sprinter van, there's some flexibility on the
spacing between the TX and RX antennas. Is there some rule of thumb
for spacing these two antennas (that will be at the same height above
ground)?
Paul Yonge
KC2PBD WQDY219
MIDLAKES REPEATER
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