I need a little advise here.  I want to test my repeater's 
sensitivity through the duplexer's while the transmitter is keyed 
up, into my Cushman Service Monitor.  What is the best method of 
doing this?  Do I need an isolator of some sort, or will the service 
monitor handle both the incoming power and the outgoing signal 
generator?  It's a Cushman 6030 by the way.  The repeater is working 
excellent for the most part.  The problem that I am having is on 
weak signals, the audio is being chopped out, almost like the PL 
deck is shutting down.  On the bench, the receiver is at about .25 
microvolts sensitivity at 12 DB Sinad.  Audio out of the transmitter 
is about 4KHz wide, and clean at 100 watts.  Any suggestions.  
Handhelds are able to get in from about 4 miles away, mobiles have 
no troubles at 30 miles away.  The antenna is only up at 60' right 
now, fed with 120' of 7/8" Andrews hardline.  But it seems the 
handhelds are the one's having the problems, and their signal is not 
really that bad.  Help please.

Mathew






 
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