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Cecil Moore · July 11th 06, 08:37 PM posted to rec.radio.amateur.antenna

wrote:
If the RF chokes and wire are inside the shield, it will keep the
current off the wire inside the shield.

I hope W8JI is reading this. He insists that it will still
function as a stub and such an approach is "useless".

However, where the wire exits the shield, currents can still be induced
on it... this is what allows current to flow on the unchoked center
conductor, right? So why wouldn't it flow in the other direction.

So you need chokes some distance outside the shield to isolate the rest
of the wire from the antenna.

Just outside the shield is a relay with an RF bypass cap
across its coil.
--
73, Cecil http://www.qsl.net/w5dxp