Re: [TowerTalk] Is a cellular phone tower in the nearby vacinity a problem for a ham?

[Jim Brown <jim@audiosystemsgroup.com>]

Several potential noise sources. Switching power supplies running gear, 
and even in backup power systems. As was noted in another thread, much 
of the electronics is on top of the tower, mounted to the antennas. Data 
lines going to that stuff could be noisy unless they're fiber.
73, Jim K9YC

On Sat,2/11/2017 11:47 AM, Barry Merrill wrote:
> I have a major cell building with antennas on the 125 foot pylons
> that are located 420 feet to the Northwest, and as the antenna
> swings thru that azimuth there is switching noise that adds 5-10db
> for about 25 degrees either side.

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