In my case, pretty well documented. UHF Community Repeater, and a VHF
public safety repeater. After replacing everything else, replace the LMR
the recieve issues go away - no more noise introduced.
google "lmr cable repeater" and you will see some more.
Works great on base stations, just not on duplex situations.
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heaven knows we need them down here!
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----- Original Message -----
From: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>
Sent: Friday, July 16, 2010 7:53 PM
Subject: Re: [TowerTalk] LMR-900
> On 7/16/2010 8:08 PM, Blake Bowers wrote:
>> There is a school of thought out there that many subscribe
>> to, myself included, that will not use LMR cables for
>> long runs on a repeater, due to the noise that tends to be
> I've never seen it to be a problem. Is this something they are afraid
> of, or something they have experienced and documented.
> If some one did have a problem, was it water getting in the coax. I've
> had that problem even with double shielded cables.
> The largest problem I ever had was with grounded EHS. Every time it'd
> move in the thimbles the noise would over ride a 50 watt mobile just 2
> miles out. Of course rubbing an 8" screwdriver on the guy line would do
> the same.
> The only problems I've had with LMR cables was when the LMR-400UF rubbed
> through the jacket on the top of the tower and when the power dividers
> leaked water through the N-connectors into the LMR-400UF.
> Getting water in at a repeater is highly unlikely as the coax connector
> is recessed into the bottom of the antenna and protected from the
> I wouldn't hesitate to use it although for repeaters we can usually find
> 7/8" Heliax or larger for a low price or even free. In that case I'd opt
> for the Heliax.
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