My vote is that it's the antenna. You didn't say what type of feedline you're using, though. Could be that.
Joe M. [EMAIL PROTECTED] wrote: > I hope some of the experts here can shed some light to help solve this > problem. And I apologize if this question is off-topic. > I'll try to do my best to describe the problem we are having. > On our repeater, we use a TM-241 as the reveicer, another 241 as the > ecxiter and an old Motorola as the final amp. > The duplexer is factory tuned to 144.750 and 145.350 (our frequencies), > and the antena is a GP-9. > Every once in a while, the repeater starts to act up. Specially on hot > days and during the night time. It seems that there isn't enough > isolation between the RX and TX. But, when only the transmitter is on > (RX side quiet and the TX sending the repeater ID, for exemple), there > isn't any problem at all. > We tried just about everything we could to solve this problem. Send the > duplexer back to be retuned, checked cables and antena, messed with the > squelch on the receiver... Also, we use no PL tone at the moment. But > even with a PL tone, it doesn't get any b etter. > We ran out of ideas... > Any help will be gratly appreciated. > Thank you very much in advance, > Lucas - PU2LFV > > PS Sorry for my bad English.... > >
