On 2015-04-08 16:52, Mike Waters wrote:
Floating shield? I don't have the Waller Flag info here, but I assume
that
means that the twinax braid shield is grounded at the station, open at
the
antenna, and not connected to either of the two conductors inside the
shield. Am I correct?
/_topband
It is difficult to make the characteristic impedance as low as 75 ohms.
Adding a shield makes it considerably easier. It is completely
reasonable to have a floating shield whose only purpose is to
assist with realizing a 75 ohm characteristic impedance.
Rick N6RK
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