Quoting ve7ltd <[EMAIL PROTECTED]>: > I have a Harris Alpha 2000 UHF (ex radio telephone) running full > duplex service, which has been in service for 7 years now... Great > radio. > > We had some recent additions to the spectrum in Vancouver, so I had > to remove my preamp. When I did, I noticed that the carrier hangtime > of the repeater had a lot of noise on it. > > I was in the repeater shack talking to myself, when my buddy came on > and keyed up and said "Your transmit audio is WAAAAAY to low". To > myself (I was thinking) I said out loud "you must be on crack, I > havent touched anything". Then, to my suprise, he replied.... > > Then I realized all I had to do was yell at the casing, and he heard > me fine.... > > This is the only one of these repeaters I have in service that is > this way, and I dont think it was before. My old frequency generator > is also microphonic, but that is ancient. Is it something to do with > synthesizers? What causes a repeater to become microphonic? > > Dave Cameron > VE7LTD > > Hi Dave,try checking the shield covers of the vco's and pll to see if they are tight and grounded good.Ran into this some years back with a GE Pheonix.I had to take off the covers and clean board traces were it made contact.
Wes KD3IJ > > > > > > 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/ > > > 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/
