At this point if you need to use the amplifier your best bet is to just reduce the output until the desense goes away and call it good.
tom > [Original Message] > From: atms169 <atms...@yahoo.com> > To: <Repeater-Builder@yahoogroups.com> > Date: 5/20/2009 10:52:37 PM > Subject: [Repeater-Builder] Re: Desense on High Power Linear Repeater? > > Hey Don, yeah good to hear ya! > > Well, the system is at my house. If I could find a tower (Trust me I have looked around) then that would make the world of difference. > > Its up on my tower about 60 feet (Both UHF and VHF). The VHF has pretty good coverage. The UHF not so much, probably half of the VHF side. > > Using LMR400 for both with a 7 dB vertical for the UHF and a 4.5 dB for the VHF. > > > > > --- In Repeater-Builder@yahoogroups.com, "de W5DK" <w...@...> wrote: > > > > Aaron, > > Howdy again neighbor! Don't start spreading rumors that its flat in Texas, > > it's all downhill to the beach.....on second thought it IS flat and the > > water is bad,,,, > > > > Are these the cavities I tuned for you last fall? If so guys,,,, these are > > typical specs for 4 cans BPBR. Sorry but I couldn't find screen shots of > > when I tuned them, they were just under 80DB as I recall, and had been > > fiddled with before I corrected them. > > > > We had a brief discussion that day Aaron, and you are going to hear support > > of my suggestions. Location Location Location. Whether its Dstar or not, you > > can only squeeze so much range out of a site. You are adding items on the RX > > and TX and have exceeded the separation specs of your duplexers. You may be > > in the same boat many people are, all the equipment and no place to go. You > > need to acquire a better site. > > > > Are you running the UHF package still? And these are at the same site right? > > Tell us the details of the antenna systems-height, feed line (type and > > length) and antennas? I'm curious of the range differences between the UHF > > and VHF after considering the differences in antenna systems. > > > > > > > > 73 > > Don Kirchner W5DK > > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > >
