Laryn,
I don't 'think' there are any forgotten links, but I'll certainly ask the question when I speak to the owner again. He's very open about his systems and I believe he's very involved, but like any of us who is getting older, it's possible he forgot something. I agree about the spur sounding like a dirty transmitter. that was my first thought when we heard it and it took a lot of convincing for me to believe that the pager transmitters were clean. That being said, it's still very possible (and likely) that it's mixing with something that is extremely cruddy and unstable. I can't imagine anything different. I also agree with your comment about multipath. I also think there is only one problem source. I've done quite a bit of foxhunting in the past, but will admit that I'm rusty and also that I've never hunted in this area. It also seems like every place I want to go to take a shot, there's a darn chain link fence that's either funneling or reflecting the signals. Nothing is easy anymore! I've not been to any of the other sites while this is going on. The issue with 145.43 was only made known to me after-the-fact and the operator of that system and I have had several disagreements in the past, so I've just let that sleeping dog lie. The 145.11 in Cochran only experiences the problem on occasion (as opposed to just about any warm/sunny day for the 146.85) and it takes me about 40 minutes to drive to there from either work or home, so I haven't made a huge effort to do so. Last time we hooked up the spectrum analyzer to the repeater antenna, what we were seeing was very daunting. I need to go back through the many pages of notes and emails from last year to see if there's anything that I might have overlooked at the time. At this point, I'd like to find the offending device and beat it to pieces with a baseball bat! 73, Mike WM4B _____ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of larynl2 Sent: Saturday, April 24, 2010 9:04 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Pager Interference Revisited At the risk of mentioning something that's been mentioned and/or checked by you before... I believe you said that linking to the sites is not terrestrial RF but wireline and satellite. Be sure that there isn't some RF linking that's been "fogotten" by someone not very familiar with the entire system. I've seen 72 mc. link transmitters transmit spurs just like any defective transmitter can. The way this spur wanders around sure sounds like a dirty transmitter. Puzzling thing is that you've said that the bearings to the "spurs" while DFing wander all over the place. I would doubt there's more than one spur generator, so, point is, make sure your DFing person is an experienced Foxhunter and knows how to handle multipath, one of the biggest *spoilers* for any Foxhunter. You said you sat near one of the sites but the interfering signal was weak, or non-existent. Have you done the same at the other two sites? Good luck finding this beast! Laryn K8TVZ
