Gary Slagel wrote:
> Anyone have any ideas on how to remotely switch
> balanced lines. The idea being to have 2
> dipoles/doublets on a tower with one balanced feedline
> running to the shack and be able to switch the
> feedline from one antenna to the other at the tower.
Assuming you want to fabricate something:
Double pole double throw relay, coil operated by DC carried on the
feedline, decoupled with a choke.
Use any of the relays that folks use in antenna switch boxes that are
available in DPDT configurations..
If you want something off the shelf, it's going to be a bit trickier.
You could modify something like an MFJ RCS-8V pretty easily by cutting a
couple traces. The relays in that are basically SPST switches, so you'd
use 4 of the 5 to do your switching.
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