[TowerTalk] Remote Antenna Relay

[Allen Jones]

I want to control an antenna relay at the base of my tower by feeding
control voltage down the coax instead of running a separate control cable.
I know this is usually done by putting blocking caps at each end of the coax
cable and using chokes to isolate the power supply and relay coil from the
RF.  Anyone know what value choke I should use?  Is the value of the caps at
all critical?  I was planning on using 1000 pf.  I know I've seen a project
like this in print but can't recall where.

Thanks

Allen Jones, W9DZ
w9dz@arrl.net


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