--- Rick Stoneking <[EMAIL PROTECTED]> wrote:
> All, > > I am trying to resolve a problem on a local repeater > where they are having intermittent 'noise' problems. > > > Background: > This a commercial GE repeater that has been modified > for 2m use. When the noise is not present the > repeater performance is outstanding with a wide > coverage area. > The following have been replaced with new and had no > effect: > - tranmitter/receiver > - antenna (super station master) > - hardline from duplexer to antenna > - repeater controller > > The noise may be related to weather (wet or cold > causing an increase in the problem) though it is not > a everytime event. > > It was originaly believed that it was a grounding > problem but grounding improvements have had no > lasting effect. > > At one point it was said that the guy wires were > causing the problem so the club recently put > insulators in all 9 guy wires about 6 to 8 feet from > the anchor point - no help. > > The problem, which sounds like static or popping, > occurs only during transmitting incoming audio. In > other words, all controller generated audio is fine, > no noise what so ever. > > Go to the repeater site and use a signal generator or some other means to creat a weak signal and key the transmitter. Then start shaking everything on the tower. Something ls loose and rubbing on something else.. I ahd a guy wire problem when the wind would blow. The repeater was in a 6x6 foot building at the bottom of a 100 foot tower. The antenna was a station master at the top. The guy wires at the ground had about 2 or 3 feet extra that were hanging loose after the clamps. Some of them were rubbing the guy wires going to the tower. Clamped them down and that solved the problem. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 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/
