Thanks to everyone for their suggestions - consensus seems to be that
the homebrew chokes are not enough reactance at 1.8 MHz, so I'll get
some store bought ones at 220 uH or more. I tried battery power for the
whole system, but no difference. I'm going to try battery power for the
remote box and omitting the bias tee entirely, at least as a test.
--
73, Pete N4ZR
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blog at reversebeacon.blogspot.com.
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