Topband: Shunt Feed wire

Earl W Cunningham k6se at juno.com
Fri Aug 27 12:01:35 EDT 2004


Jorge, EA2LU wrote:

"I check my shunt feed tower with the RX noise bridge and found it is up
on frecuency (TAP is near the  middle)."
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If the frequency of a 50-ohm match is high, that means you must go up
with the tap (or wider spacing).
==========

"Could I use RG-213 with braid and center togheter for this purposse?"
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Yes, that is ok to do.  Remember that if the new shunt wire is larger
than the original (10mm) shunt wire, the impedance transformation will be
less.  That means the tap point for 50 ohms will be a bit higher.

73, de Earl, K6SE


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