"Eric Fairbank" wrote in
:

These are "active" antenna's. Power is provided via the coax and
there is
a PCB in there with a pre-amplifier circuit. Some units have notch
filters and/or bandpass filters in them.

Eric



Don't confuse them. They think you can plug just any old thing into any
old thing just because it has the same BNC connector and it will be on the
cheap.

If we go telling them different, technicians' families will starve and have
a bad Christmas...

Not long ago I found a formerly-good GPS front end plugged into a formerly-
good LORAN receiver, myself...

They're pretty close, right?....(c;