Paul,
I'm with ya on your third paragraph. We've worked well together so far, but we have very different techniques and motivations. Right now, my motivation is to make is stop before I go crazy. I'm hearing paging tones in my sleep! I kinda think one of the sites took a lightning strike about the time this started (we had a pretty good lightning event about that time), so I think the PA is a good possibility. Or an isolator/combiner. I'd like to have the first whack with a baseball bat when we find it! 73, Mike WM4B From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Paul Plack Sent: Wednesday, October 28, 2009 6:29 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Pager Interference to 2-meter & VHF Public Service Band Mike, If it moves around based on time of day, my first guess is a PA that's gone bad, and has a parasitic that's temperature-related. If you've tracked an individual spur drifting 70 kHz up the band during a single transmission, this is not some (intentional) oscillator drifting, but some combination of failed components or tuning which has produced a parasitic. Sorry to say, but a paging transmitter owner swearing his stuff is clean is pretty meaningless. The assumption in his industry is the professionals who maintain his stuff are not the problem, it's "those damn hams." Sadly, it may more often be the other way around these days, as companies maintaining paging equipment have transitioned to underpaid, under-trained card-swappers instead of component-level technicians with a clue about RF systems. 73, Paul, AE4KR ----- Original Message ----- From: Mike <mailto:mwbese...@cox.net> To: Repeater-Builder@yahoogroups.com Sent: Wednesday, October 28, 2009 12:28 PM Subject: [Repeater-Builder] Pager Interference to 2-meter & VHF Public Service Band A couple of weeks ago, our repeater system started to experience interference from a paging system... ...one evening I tracked it from about 145.120 to 145.190 as it swept through each transmission... . <http://geo.yahoo.com/serv?s=97359714/grpId=104168/grpspId=1705063108/msgId= 95309/stime=1256754552/nc1=4025338/nc2=5191953/nc3=5741393>
