Dear Joe, One system is on 380~400Mhz, and the other one is on 470~490Mhz.
Best Regards, Kent --- On Tue, 9/3/10, Joe <k1ike_m...@snet.net> wrote: From: Joe <k1ike_m...@snet.net> Subject: Re: [Repeater-Builder] Noise Level on a Duplexer To: Repeater-Builder@yahoogroups.com Date: Tuesday, 9 March, 2010, 7:29 AM What frequency are you on? Joe Kent Chong wrote: > > > Hello Everybody, > > Good day. > > We have developed a Duplexer to combine to two signals form two > systems for in-building application. The Dupluxer (or combiner) has > specifications of 1.7dB insertion loss and >60dB isolation. When we > set up the system and power on the two systems, the combiner works fine. > > However, we notice that the noise level (up link) on the two systems > will slowly increase, and until 3~4 days later, the noise level has > increased to -80~-60dBm level. We then power down the systems for 3 > hours, and power them up again. The systems work fine again. > > Anybody could help? > > Best Regards, > > Kent > > > > ------------ --------- --------- --------- --------- --------- - > New Email names for you! > <http://sg.rd. yahoo.com/ sg/mail/domainch oice/mail/ signature/ > *http://mail. promotions. yahoo.com/ newdomains/ sg/> > > Get the Email name you've always wanted on the new @ymail and @rocketmail. > Hurry before someone else does! > > New Email addresses available on Yahoo! Get the Email name you've always wanted on the new @ymail and @rocketmail. Hurry before someone else does! http://mail.promotions.yahoo.com/newdomains/sg/