At 9/19/2009 17:25, you wrote: >Hey guys, >Alright, i have a very strange problem on 220. Let me explain the >equipment. >The repeater is a hipro r1, with an arcom rc210 controller, hustler 220 >antenna, and wacom duplexer. >I'm getting this very strange feedback in to the 220 receiver. >The problem only occurs when the 220 transmitter is keyed.
Got a 1600 AM radio station in the area? >We checked the duplexer and it appears perfect on a service monitor. >After having gotten the repeater back from hipro, we measured it, and it >shows up -.71 KHZ off frequencyy, in terms of the transmitted signal. >To me this seems way off, but according to hipro it's within spec. >I let the crystals warm up for a good 10 minutes before doing this test. >For cable between the receiver and the duplexer, and the transmitter and the >duplexer, it's rg142. >Any ideas guys? I've been given a theory that it may be the antenna, since >they are not that good at repeater service. The Hustler G7-220 is a reasonably good antenna; doubt it's your problem unless there's a loose joint/corrosion problem. >The antenna is mounted on the roof of a hospital. More likely that some other electronics on or just below the roof is causing a mix. Bob NO6B
