Re: [IRCA] Cable connectors

["Craig Healy" <bubba@xxxxxxxxxxxxxxxxxxxx>]

OK, one other thought...

The goal is to reduce the signal ingress on an antenna cable to the lowest 
possible level.  What if the receive end was run through a transformer to 
open the ground connection.  Then, a single wire was run parallel right next 
to the coax for the entire length.  Then coupled out of phase with the 
shield on the coax itself?  I have to wonder if that could be tweaked to 
drop the ingress signals by canceling them out?  A 180 degree transformer 
keeps that phase over a wide frequency range so it wouldn't be a 
frequency-specific null.

The main reason I started this whole project is that the ingress spoiled any 
null I could get with two loops spread about 150' apart.  Even the null of 
the loop itself was negligent.  By clearing out the ingress, it may be 
possible to set two loops pretty far apart and positioned to null a pest. 
Then the two loops could be phased to deepen the null or even null a second 
pest on the same frequency.

Craig Healy
Providence, RI


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