Actually the repeater is here at my home qth, only other transmitter is a 460 commercial repeater about 2 miles away, do don't think I am getting any problems from that one.
Mathew ----- Original Message ----- From: "Mike WA6ILQ" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, July 26, 2004 7:33 PM Subject: Re: [Repeater-Builder] Receiver Sensitivity Testing Through Duplexer > Forgot to mention one thing - you don't even need to visit the site > if the repeater has an autopatch (or even a remote base that is on > a different band) you can listen to the RX via the patch or remote > and let the main channel TX time out. If the quieting level in the > RX goes up exactly when the TX drops off that indicates a problem. > > Mike WA6ILQ > > At 07:14 PM 7/26/04, you wrote: > > >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 > > > > > > > > > > > > > > > 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/
