I like the idea but I'd use a parked mobile instead. HT's are hand held and can be moved which will change the signal level, plus they pull 3/4 to 1amp from the batteries and can suck them down, which also changes the signal level. The use of a parked mobile - set to the lowest power level it can do - eliminates both factors from the equation.
Mike WA6ILQ At 06:57 PM 7/26/04, you wrote: >Here's one simple test. Have someone with an HT get into a noisy location, >then disable your repeater transmitter while listening on the local speaker. >If all of a sudden the HT becomes full quieting, you've got a desense >problem. > >Chuck >WB2EDV > > > >----- Original Message ----- >From: "w9mwq" <[EMAIL PROTECTED]> >To: <[email protected]> >Sent: Monday, July 26, 2004 8:01 PM >Subject: [Repeater-Builder] Receiver Sensitivity Testing Through Duplexer > > > > 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 > > > > > > > > > >Yahoo! Groups Links > > > > 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/
