Topband: DC bias tee question
Pete Smith N4ZR
n4zr at contesting.com
Wed May 21 16:01:29 EDT 2014
I've been looking at the Shared Apex Loop, and one thing I am puzzled by
(among many) is that the bias tee/DC coupler circuit has both sides of
the 75-ohm feed coming in from the antenna and the DC supplied to the
coupler totally isolated from ground, while the ground side of the coax
going to the receiver is connected to ground. Having recently been
totally defeated in building a bias tee of my own for receive antenna
switching, I wonder if maybe this is a subtlety of the design that had
Can anyone clear this up? I'll be glad to share the schematic if the
above isn't enough information.
73, Pete N4ZR
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