At 5/8/2006 10:45, you wrote:
>--- In [email protected], Bob Dengler <[EMAIL PROTECTED]> wrote:
> >
> > At 5/4/2006 08:38 AM, you wrote:
> >
> > > >I hope someone can shed some light on this?
> > > >
> > > > If I have my repeater at home it works with 30 Watts out now
>problem.
> > > > When I bring it back to the repeater site I have to lower it to 5-10
> > > > Watts because I get RF feedback to the radio. It just sounds
>like the
> > > > squelch is always open.
> > > >
> > > > Motorola Mitrek modified for duplex
> > > > Coax is the same at both locations, LMR400
> > > >
> > > > Antenna is the only thing that is different, using a fiberglass
>Alpha
> >
> > If the repeater site is shared, there's lots of other
>equipment/antennas up
> > there as well. Any switching power supplies, video cameras or TV
> > transmitters at the site?
> >
> > Bob NO6B
> >
>
>
>The repeater site is not shared. I have now tried everything I
>possibly could think of. I replaced the coax from the duplexer to the
>radio, encased the radio in a thick metal box, replaced coax, replaced
>antenna. Still the same thing. So I am led to believe that the
>repeater site itself is receiving some sort of interferance?
I assume from your description of the problem that the interfering signal
is only present on your input when your repeater TX is up. You may need to
take an "RF-bulletproof" RX & Yagi to the site & DF the source of the mix
while your repeater is TXing.
Bob NO6B
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