Beyond just "turning off" the other repeaters, try terminating their antenna feedlines with a dummy load instead of leaving them connected to the equipment. See if that makes any difference.
> -----Original Message----- > From: Repeater-Builder@yahoogroups.com > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Jed Barton > Sent: Sunday, September 20, 2009 10:59 AM > To: Repeater-Builder@yahoogroups.com > Subject: RE: [Repeater-Builder] a strange unexplainable desense issue > > > > actually the problem did not go away. > We tested it yesterday with UHF completely off, and 220 just > kep making tons > of noise. > In fact, UHF plays fine stand alone, i had to turn 220 off > when we left the > sight. > Any ideas? > I think this is more of an issue of something getting in to > the input of > 220. Even stand alone without UHF even turned on, it's an issue. > Thoughts? > -----Original Message----- > From: Repeater-Builder@yahoogroups.com > <mailto:Repeater-Builder%40yahoogroups.com> > [mailto:Repeater-Builder@yahoogroups.com > <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of > repeat...@juno.com <mailto:repeaters%40juno.com> > Sent: Sunday, September 20, 2009 10:19 AM > To: Repeater-Builder@yahoogroups.com > <mailto:Repeater-Builder%40yahoogroups.com> > Subject: Re: [Repeater-Builder] a strange unexplainable desense issue > > Hey Jed, You are leaving out a key piece of information. Your > antennas are > at the same height and almost next to each other causing a > mixing problem > that I explained to you. The problem will not go away until > the antennas are > separated. You proved this by killing each transmitter > separately and the > problem goes away. If you look on a spectrum analyzer when > both machines are > keyed you will see the mix. When I talked to you on the phone > about this > problem I gave you the mixed frequency to look for on 220. > When the machines > left the factory they were both on frequency and checked with > 2 different > IFR's that were recently calibrated. Even if the machines > were off by not > even 1kc it would not cause this problem. I think since you > said both are > off by about the same amount you might want to look at what > ever your using > to measure them. > > Paul Maggiore V.P. AA3VI > > Maggiore Electronic Lab (HiPro) > > __________________________________________________________ > Best Weight Loss Program - Click Here! > <http://thirdpartyoffers.juno.com/TGL2142/fc/BLSrjpTFoYdQPLtnb > ksoClURHCwdUYQ > <http://thirdpartyoffers.juno.com/TGL2142/fc/BLSrjpTFoYdQPLtnb > ksoClURHCwdUYQ> > owpN4jCEaG6izKUkjb0Vua2cjHva/> > > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.409 / Virus Database: 270.13.78/2347 - Release > Date: 09/20/09 06:22:00 > > >
