Jamey, Brent here, how you been?
10 channel system on 800mhz If using your system for example and want better power output If money is no issue then you can run another 300' 1-5/8" line. And another antenna Split only the tx combiner system into 2 tx antennas Doing all this will help with the power output. I have done this on two sites and three more that I am in the middle of installing and configuring for 380mhz Im sure im way of topic See ya Brent _____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Jamey Wright Sent: Thursday, June 05, 2008 4:05 PM To: '[email protected]' Subject: RE: [Repeater-Builder] isolator - circulator loss I'd love to only have 2.5 dB loss. We're over 5 dB here on our 10 channel site but some of our freqs are 250 kHz apart too (800 MHz Trunked). 100W through the combiner and through 300 Ft of 1 5/8 cable (plus Polyphaser, jumpers, connectors, etc) yields between 15 and 20 watts (calculated) at the top of the tower. Jamey Wright Systems Analyst/EDACS Administrator Morgan County EMCD 911 Decatur, AL 256-552-0911 > Amen Paul, > > In the real commercial radio world... when working on or into > combiner systems... some people would give their first born to > have less than 2.5 dB loss per channel. > > Although the entire path to the antenna can be a lossy son of > a gun, it is the only real game in town worth playing. > > cheers, > s. > > > "Paul Plack" <[EMAIL PROTECTED]> wrote: > > > > Using an isolator between a 100-watt transmitter and a perfectly > matched antenna still only gets you 90 watts out. A typical isolator > loses 0.5 dB on the forward path. > > > > 73, > > Paul, AE4KR > > > > ------------------------------------ > > > > Yahoo! Groups Links > > >
