Give TX RX a call and they can give you a price. Ask for Bob in sales. I had it done at one time on a business set of repeaters but the cost kept it from being done.
John ----- Original Message ----- From: "Eric Lemmon" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, December 07, 2003 3:25 PM Subject: Re: [Repeater-Builder] Question about combiners > Jed, > > There are several options, all of them expensive. Whether you go the > hybrid-ferrite route or the cavity-ferrite route depends not only upon > the frequencies of your two repeaters, but also those of other > transmitters at the site. Either way, you must separate the two > receivers from the two transmitters. > > A combiner is used to feed both transmitters to one antenna so that each > transmitter sees a good 50 ohm match to the antenna, but is isolated > from the other transmitter. When a hybrid is used, you lose slightly > more than half of the power from each transmitter. That is, when you > combine two 100 watt transmitters using a hybrid, each transmitter now > has about 40-45 watts going to the antenna. The cavity route is better, > but is more costly. > > A multicoupler is used to split the receive frequencies from a separate > antenna to the two receivers. There will be a preselector or bandpass > cavities ahead of an amplifier, and a splitter to divide the signal > among the receivers. > > Since you must have two antennas and the equivalent of two duplexers to > make either system work, it is very likely cheaper to simply use two > antennas- one for each repeater. Even if you have two commercial-grade > repeaters, you almost certainly will need ferrite isolators and low-pass > filters on both machines. Choose wisely... > > 73, Eric Lemmon WB6FLY > > > Jed Barton wrote: > > > > Hey guys. > > OK, this is a bit greek to me, so your info is appreciated. I have 1 site and 2 repeaters. We don't have the space to put them on separate antennas... Could I run 2 UHF repeaters on 1 antenna?... > > > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
