I used a noise bridge to cut all the RG-11 stacked yagi and phased verticals
phasing lines as well as harmonic stubs here when running a 2 station single
op contest, before SO2R.
Using the station receiver also works well as the backround noise null is
easily heard. I did that several times when a 9V battery was dead and
compared results later, they were right on.
Carl
KM1H
----- Original Message -----
From: <mapa50@windstream.net>
To: <topband@contesting.com>
Sent: Friday, February 14, 2014 12:18 AM
Subject: Topband: Palomar R-X Noise Bridge
I have a question about using the noise bridge. I have used it cut stubs to
1/4 wavelength using 52 ohm cable with no problems. I now need some stubs
using 75 ohm cable which I have on hand.
Will the same procedure work for 75 ohm that works for 52 ohm cable, or
will the different impedance need to be accounted for. I started to cut
cable and this question came to me. My first thought is that it will work
fine, but I am not sure. I did some searches on the web but found nothing
about it. Any help would be appreciated.
Thanks, Pat Armstrong
KF5YZ
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