You didn't mention the maintenance dept. having their own channel. If buses are using your channel (45x.750) then the repeater is likely at a higher location so it can better cover the area. If you've exhausted all available records, can't contact the previous tech, and can't find a dealer that knows where your repeater is then I'd suggest a good ol' fashioned transmitter hunt. Do you have any amateurs in your area that are up to the task? Gary
-----Original Message----- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon Sent: Thursday, August 13, 2009 5:43 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Motorola MTR2000 Question I wish I had a picture of the repeater house. The frequency listed on the MTR2000 is that of the schools maint. department. The other MTR2000, hook to the other antenna, is the Schools PD. I know those for a fact. Now its time to locate the other repeater system. The only odd ball thing I do know is that every once in a while, when a bus is talking to another bus or dispatch, you get a high squeal walk on over them, but its most likely another drive not paying attention and trying to key their radio. But I wonder if it might be the maint. since their frequency is so close to ours.