Thread: Induced signal?
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Old July 11th 06, 08:41 PM posted to rec.radio.amateur.antenna
[email protected] w8ji@akorn.net is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 46
Default Induced signal?


Cecil Moore wrote:
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


Turn in your mensa membership card Cecil.

You flunked basic grade-K problem solving logic.

:-)