Topband: DC bias tee question
w8ji at w8ji.com
Wed May 21 21:47:46 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
> escaped me.
That makes no difference in function.
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