Hey John and every body,
Make sure that there is a /u on the end of your RG-214 or RG-214/U big
difference between RG-214 and RG-214/u
Good Luck,
73 Russ, W3CH
----- Original Message -----
From: "JOHN MACKEY" <[EMAIL PROTECTED]>
To: <Repeater-Builder@yahoogroups.com>
Sent: Saturday, December 04, 2004 9:47 PM
Subject: Re: [Repeater-Builder] Repeater 'noise' problem
>
> Make sure all the coax jumpers are OK. They should be good RG-214 and
> DEFINATELY not 9913. If you find any 9913 jumpers replace them with
Rg-214.
>
> ------ Original Message ------
> Received: Sat, 04 Dec 2004 04:36:49 PM CST
> From: "Rick Stoneking" <[EMAIL PROTECTED]>
> To: <Repeater-Builder@yahoogroups.com>
> Subject: [Repeater-Builder] Repeater 'noise' problem
>
> > All,
> >
> > I am trying to resolve a problem on a local repeater where they are
having
> intermittent 'noise' problems.
> >
> > Background:
> > This a commercial GE repeater that has been modified for 2m use. When
the
> noise is not present the repeater performance is outstanding with a wide
> coverage area.
> > The following have been replaced with new and had no effect:
> > - tranmitter/receiver
> > - antenna (super station master)
> > - hardline from duplexer to antenna
> > - repeater controller
> >
> > The noise may be related to weather (wet or cold causing an increase in
the
> problem) though it is not a everytime event.
> >
> > It was originaly believed that it was a grounding problem but grounding
> improvements have had no lasting effect.
> >
> > At one point it was said that the guy wires were causing the problem so
the
> club recently put insulators in all 9 guy wires about 6 to 8 feet from the
> anchor point - no help.
> >
> > The problem, which sounds like static or popping, occurs only during
> transmitting incoming audio. In other words, all controller generated
audio
> is fine, no noise what so ever.
> >
> > I am wondering if we are looking at a problem in the duplexor. One
because
> it is the only peice of the system that has not been changed (although it
was
> checked out by a professional RF engineer using state of the art equipment
> about a year or so ago - but he was just looking to tune it to the right
> frequencies). Two, because the only time there is a problem is during
> transmitting received audio. We are going to go and check all of the
> interconnections in the duplexor, but I thought I would ask the group if
they
> had ever experienced anything similar, and ask for suggestions.
> >
> > Thanks and 73,
> > Rick
> > W2RDS
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
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