Make sure all of the shields are in place on the MASTR II. We had one here on a Public Safety freq that was co-located with a 100 KW FM. Between the squirrels calling the MASTR II home and chewing on some of the wiring and some man-made wiring problems, it sounded like the person on the repeater was riding around with the FM radio turned waaaay up.
Jamey Wright Systems Analyst Morgan County EMCD 911 Decatur, AL 256-552-0911 _____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Daron J. Wilson Sent: Tuesday, February 13, 2007 1:22 PM To: [email protected] Subject: RE: [Repeater-Builder] Ok, here's a weird one.... * Question: The only way I see this happening is due to some AM > component on radio station's transmitter. > > Thoughts? I've got one site with similar problems. MastrII repeater, in a metal cabinet, grounded, bonded quite well. Shielded audio cables, ARCOM RC-210 controller (shameless plug for Ken) and intermittent FM station audio. It comes and goes, some sort of mix with something, but the shorter shielded hook up cables helped it quite a bit. It's using a MastrII power supply and back up battery. It's tolerable most of the time, sometimes enough audio to actually hear what is being said, almost always the audio is on the 'tail' of the repeater, not noticeable when the repeater is actually repeating. Shorter shielded cabling seemed to help the most. 73 Daron
