Skipp, why would you not filter it on the input? Randy
--- In Repeater-Builder@yahoogroups.com, "skipp025" <skipp...@...> wrote: > > I remember that Neutec Unit... saw it on Ebay. > > Mike > > Do you have any analog television stations on channel(s) 11 > through 14 in the area still on the air? > > If so, I might suspect an IF image might be possible. I had > the same type of problem here from channel 13 getting into a > number of Icom receivers. > > I had to notch the image frequency of my IF to get rid of > it. > > s. > > > "Michael Ryan" <mryan001@> wrote: > > > > My recent efforts at putting a 220 repeater on the air here in western > > Florida have been mildly succesful. I am using a Neutec designed > repeater. > > ( I know there are some uhf and vhf models around, this one is on 220, a > > RANGER brand ). The repeater is open access. And runs quiet all day or > > night, nothing cracking the squelch at all. But during times when > there is > > a conversation going on after a few minutes a rather nasty signal > captures > > the repeater sometimes in short bursts, sometimes much longer. > "Sounds like > > someone talking into a reverb chamber.." I had been using a Mirage > brick > > amp in the rack, but suspected that this amp might be the problem, some > > oscillation or internal mixing of some sort. This turned out not to > be the > > case, the amp though still in the circuit is OFF but we still get the > > garbage. When the amp would be ON, and I would sometimes hear this > stuff > > start, and I could turn OFF the amp an it would stop. But shortly later > > even with the amp OFF, it is back.very odd that it would appear to me. > > > > Now, all cables in the rack are RG-400. Every one in the rack. Half > inch > > hardline runs to the antenna, though there is a splice with a double > male N > > connector as I recall. The Neutec unit does about 25 watts output > but I have > > it cut back to about 10 watts thinking it will run cooler. Thus > with the > > small brick amp it was doing about 65 watts output to the Telewave 4 > cavity > > duplexer. > > > > While at the site tonight, I could hear something getting into the > recvr. > > The repeater was UP, but no one talking at that moment. Again, > nothing on > > it's own ever appears to break the squelch. The noise was heard > through the > > repeater's on board speaker, meaning it was coming through the antenna / > > recvr and not something produced in the rack I would assume. > > > > There is a cel tower about 1,000ft away and another tower with ( who > knows ) > > how many other users, another 500ft further away. Based on this > little bit > > of info what would the masses suggest in first FINDING the offending > source > > if is indeed intermod? Then, is there much than can be done short of > > moving my machine? Any ideas or suggestions? > > > > n Mike > > >
