See if they are using a tower top amplifier and if so replace it. Had the same with a wireless guy over in Florence, Oregon that was on our tower and we started shutting everything off at the site and he was the last one and when we pulled the plug it was quite as a church mouse turned everything else on and still quiet until his stuff was turned back on. Being the site owner we left his stuff off and made him replace the necessary stuff. Lets say he did it in a quick hurry since he had about a 1000+ customers on it. He removed a Hyperlink amp and replaced it with a Teletronics amp.
Mike K7PFJ _____ From: [email protected] [mailto:[email protected]] On Behalf Of Jim Russell Sent: Friday, April 24, 2009 8:20 PM To: [email protected] Subject: [Repeater-Builder] Computer noise in 2M Repeater Does anyone have any suggestions on how to eliminate noise generated by a Wireless Internet System. The owner of the tower where our club has our 145.370 MHz repeater has rented space to a group who have mounted a wireless Internet "relay" on the tower. The system is simple, it consist of a Netgear switch, a Microwave dish and a smallYagi. There is approx. 300 feet of Cat 5 wire going up and 300 feet coming down the tower. Their antennas are mounted within a few feet of ours on the top of the 260 ft. tower. We unplugged the netgear switch and the noise cleared, we disconnected our antenna and the noise goes away. The noise rides on the repeater receiver squelch tail. We do use a PL tone or we wouldn't be able to use our repeater at all Jim WK5Y

