I have repeaters that have been on the air over 20 years and have never needed alignment. This goes double with duplexers - if it's still doing its job, there is no need to tinker with it. I'm using duplexers that are over 30 years old and have never been touched. About 15 years ago, I tried running them up to 400W with a very hot receiver - no desense. Why should I tweak them? All I might end up doing is making them worse. I surely can't make them any better.
I agree, it's not just Spectrum that has the broad TX problem, but they all will have the problem if they are of the same design. Conversely, a Motorola or GE will never have that problem unless the OEM LPF was circumvented by the builder. I've never had that problem with Spectrum - all my problems involved TXs going spurious. What about sites that are not accessible for months? How do you look at those monthly? You need to use a reliable repeater to start with. Then, you won't need to babysit the repeater. And IMHO, a monthly checkup IS babysitting the repeater - something that should never be needed. Joe M. ac0y5 wrote: > > Well said Kevin, but not JUST "Spectrum" machines. All repeater > owners should look at their machines at the very least monthly on a > SA as well as have local monitoring equipment. Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
