I don't expect much coverage. I'm located in the Ohio-WV river valley and it is relatively hard to get good coverage out of UHF. The repeater sits almost dead center in the zone I need to coverage and roughly I'd say around 4-5 square miles at the most. Also on a duplexer could you recommend what kind to use. Preferably I've played with alot of Celwave equipment and I've found it to be very good quality. Also I currently have LMR 400 cable I could use but it is to my knowledge that it is not good for duplex use. I've used the LMR 400 for a base station and it has worked great.
--- In [email protected], Butch Kanvick <hot...@...> wrote: > > > Receive antenna should be the highest, but 40 feet is probably not enough > isolation. > > How far do you need coverage for the repeater? > > It would be cheaper to use a duplexer and then you can have the best of both > worlds. > > Good receiver and good transmitter range. > > > > Butch, KE7FEL/r > > > > To: [email protected] > From: agrimm0...@... > Date: Sat, 27 Jun 2009 21:01:58 +0000 > Subject: [Repeater-Builder] Where to install my repeater antennas > > > > > > > > This isn't the most difficult question to answer, and I figure it can be > answered relatively easily. I currently over the past few weeks constructed a > GMRS repeater for my neighbor hood to use. It is constructed of 2 maxtrac > radios one set at just 30 watts tx. I plan to use 2 antenna's so no duplexer > is needed with some good Heliax cable running at least to the TX antenna. I > have 40 ft of tower that I plan to mount the antennas on. One antenna is a > Celwave (RFS) 6db gain antenna. And the other is just a plain 1/4 wave NMO > style mount antenna. Which is the best way to install these antennas on my > repeater? Celwave on the transmit end and at the top, or 1/4 wave on the > Transmit and celwave on the receive? Also which antenna should be mounted on > top of the tower? >
