[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [IRCA] Cable connectors
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
_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://montreal.kotalampi.com/mailman/listinfo/irca
Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers
For more information: http://www.ircaonline.org
To Post a message: irca@xxxxxxxxxxxxxxxx