I have found that most amateur band couplers or "diplexers" do not seem to operate well in full duplex 100 watt 2x environments for very long. In RX systems, is one thing, but under long TX power keys they seem to heat up and dis-assemble themselves internally. The commercial versions from folks like TX/RX are well rated for continuos duty of repeater application. Actually I have had several amateur versions fail over the years, but the commercial ones live through most anything but water and lightening....
Doug KD8B At 09:47 AM 11/14/2005, you wrote: >At 01:14 PM 11/14/2005 -0000, you wrote: > > >I know that this has been asked before, but does anyone know of a > >commercial diplexer with a higher power rating so that one can use one > >dualband antenna at the repeater site for both a VHF and UHF repeater. > ><----While I don't use a dualband antenna, I do use a pair of Comet >diplexers at one of my sites, so I only need one run of hardline up a 170' >tower. Obviously one at the repeater end and another at the top of the tower. > >As I remember, it is rated for 200 watts. The repeater (UHF), delivers 75 >watts out of the duplexer and the 2 meter remote base radio delivers 60 >watts. I've had no problems with the arrangement in over 5 years. > >Ken Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/