If you are not using a duplexer I wouldn't think you would have a problem using either feedline. The problem with the doubleshielded feedline is when in duplex operation. If you arten't using a duplexer I would switch the feedline around and put the rg-58 on the TX and the lmr400 on the receiver. That way it would be on the higher antenna and have less line loss. You still don't have decent seperation but if you are hearing the noise with the transmitter shut off then something else is getting in to the receiver.
Corey N3FE On Tue, 23 Jun 2009, agrimm0034 wrote: > The receive radio has a 20 ft piece of RG-58 Belden and the TX radio has 40 > ft of LMR 400. After I had already purchased and installed the LMR braid > cable I then learned to my knowledge this was not recomended for duplex use > and it could cause noise and other problems but there is no LMR on the > receive end of the radio and it still does it when the TX radio is turned off. > > > --- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey" <wb2...@...> wrote: >> >> Like Nate said, sounds like an intermod product with your transmitter being >> part of the mix. >> >> My standard question has become -- are you using any LMR400, 9913 or similar >> foil/braid coax anywhere in your system? >> >> Chuck >> WB2EDV >> >> >> >> ----- Original Message ----- >> From: "agrimm0034" <agrimm0...@...> >> To: <Repeater-Builder@yahoogroups.com> >> Sent: Monday, June 22, 2009 11:24 PM >> Subject: [Repeater-Builder] Completly Stumped on Noise (UHF Repeater) >> >> >>> This noise in my repeater has me completly stumped. I've tried everything >>> I know possible to make it stop but nothing has helped. Here are some >>> quick specs on what my repeater is... >>> GMRS repeater RX 467.600 TX 462.600 DPL 054 TX 30 watts. >>> >>> My local repeater when I key opens up to a scratchy noise with the local >>> police department in the background. It ONLY opens up when they key up the >>> same time my repeater is being keyed. It is not perfectly clear it is >>> scratchy but I have no idea how they are squeezing in on myn. I did find >>> there frequency's and location of there repeater so mabye someone can help >>> tell me what is wrong. Here is the Police Dept Repeater Details... >>> PD Repeater - RX 460.4500 TX 465.4500 PL 6A 75 watt. (There tower is also >>> located directly across from mine roughly 1/2 mile horizontally >>> separated.) >>> >>> I've also tried changing my frequency and PL tones and it still has not >>> made one bit of difference. I'f someone could help me out I'd gladly >>> appreciate it. Thanks >>> >>> >>> >>> ------------------------------------ >>> >>> >>> >>> Yahoo! Groups Links >>> >>> >>> >> > > >
