Put your fire suit on Aaron, you actually typed LMR. Do a search here and you will find it is known to be a problem in duplex service.
With greater losses on UHF the ranges your observations are expected. Don -----Original Message----- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of atms169 Sent: Wednesday, May 20, 2009 9:52 PM To: Repeater-Builder@yahoogroups.com 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
