Well Bob I'd bet the problem is gone for good. There's nothing like having really good feed back from your antenna to the area of your receiver with out going through the receive side of the duplexer. It sounds like a little item called a passive repeater, think about it.
I'm interested in the 4 can duplexer, I would like to know the make. Not bad for a 200 watt transmitter. AC0Y --- In [email protected], "Bob M." <[EMAIL PROTECTED]> wrote: > > First, I would like to thank everyone who responded to > my original post with suggestions, information, and > similar problems. > > Here's an update to the situation. > > Late Monday afternoon/evening, the coax/antenna was > swept (from the bottom) with a site-master unit and no > problem was found. > > There's an unused 800 MHz vertical antenna mounted > near the UHF antenna, on the platform, with coax > attached. Apparently the dummy load at the bottom of > the coax for that antenna was either missing or > defective, so another one was put on. The repeater's > desense problem is completely gone now, even with the > 200w PA and the 17dB gain preamp. > > I don't know if there was desense immediately before > playing with that dummy load, nor if they restored the > situation to what it was previously to check if the > desense reappeared. For all we know, with the high > winds and rain we had Monday, something up at the > antenna (the jumper, for example) could have moved > enough to _cure_ the problem, even temporarily. > Nothing else was done at the site on Monday, but the > repeater is working as good as it was when it first > went on the air. > > If the desense condition returns, we'll obviously have > to go looking for it again, but maybe a visit to the > top of the pole would be in order. > > Anyway, my search for a circulator is temporarily on > hold. Sure, it would be desirable to have one, but not > absolutely necessary for proper operation of the > repeater. > > Bob M. > > > > __________________________________ > Yahoo! FareChase: Search multiple travel sites in one click. > http://farechase.yahoo.com > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
