So has anyone conducted tests to determine if it is a mixing problem ?
sig gen and proximity ?
To: Repeater-Builder@yahoogroups.com
From: mwbese...@cox.net
Date: Sat, 24 Apr 2010 17:28:41 +0000
Subject: [Repeater-Builder] Re: Pager Interference Revisited
--- In Repeater-Builder@yahoogroups.com, Kris Kirby <k...@...> wrote:
>
> On Sat, 24 Apr 2010, Mike Besemer (WM4B) wrote:
> > The issue disappeared over the winter months. If it's a hot, sunny
> > day you can be sure the problem will be present. A hot, cloudy day is
> > also a fairly good bet. Also, a cooler, sunny day will bring it out.
> > Cool and cloudy or cold and sunny do not allow the problem to
> > manifest. The issue has been present during and after several days of
> > rain, so that seems to eliminate the 'rusty bolt' syndrome. I tend to
> > believe it's an amplifier mounted on a pole or tower someplace that's
> > going spurious with heat, but that is just a theory. Beam headings
> > tend to point to the paging transmitters rather than the possible
> > mixing source, which is baffling me as well.
>
> Does the paging transmitter have a circulator, or a bandpass cavity
> between it and the antenna? Does it stay on one frequency or hop around?
>
> --
> Kris Kirby, KE4AHR
> Disinformation Analyst
>
I'm told that they do Kris, although I've never been inside any of the sites to
see for myself. Given the amount of effort that the pager operator has put in
to this effort, I'm inclinded to take him at his word. Even if they did not,
I'm having a hard time believe that 3 transmitters in 3 different locations
would produce the same issue. (Of course, stranger things have happened.)
The transmitters all stay on 462.775.
Mike
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