Sounds like intermod involving your repeater's transmitter as part of the mix.
Chuck WB2EDV ----- Original Message ----- From: "Robert" <kd4...@juno.com> To: <Repeater-Builder@yahoogroups.com> Sent: Saturday, August 14, 2010 7:32 AM Subject: [Repeater-Builder] Strange noise on our club repeater > We have a MSR2000 for our club repeater. Every so often on a weak signal > we get a noise that sounds like...well you know when you go to the dentist > and get your teeth cleaned. The little tube that they put in your mouth > and sucks all the spit out. Welllll... that is on the tail of some > signals, sometimes. (sorry for the gross analogy ;-) This only happens a > few times a day and not often on a stronger signal. When the user unkeys, > it will have the "sucking sound" for a second or sometimes a few > seconds...then the squelch closes. The user has unkeyed...but the > repeater stays keyed up with the noise. We know that there are some > strong signals near by the input. Also.... with the input at 144.61... > there is a DStar repeater with a input of 144.60 up the road by 30 miles > or so. Also... we have pretty fair amount of APRS traffic in the area > (digi about 8 miles away). > > Ideas? > Robert > KD4YDC >
