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[CQ-Contest] RF chokes

Subject: [CQ-Contest] RF chokes
From: zettel@homer.libby.org (Steve Zettel)
Date: Fri Jan 30 00:33:25 1998
What is the collective wisdom of the reflectors concerning decoupling tower
mounted antenna-switching relays with RF chokes on the relay coil leads? I
am building a relay box to be mounted on my tower for switching an 80M
array. Should I take the time and trouble to wind some rf chokes on toriods
for each of the relay coil leads, or is this a waste of time and effort. RF
de-coupling caps  are already planned in the design (0.1 or 0.01 uf 500v
ceramics) for the control cable leads. If the RF chokes are a good idea,
I'm open to pointers -- how many u-henries, number of windings and gauge of
wire on what type toroidal core, etc.

Thanks for you assistance,

Steve Zettel  KJ7CH
near Libby, MT USA





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