I'm wondering if a Cell telephone tower in the nearby vicinity (perhaps within a mile) would be considered an interference problem for a ham...especially one who operates mostly below 30mhz? Would se
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
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 th
Author: Kevin Kidd <kkbroadcastengineering@gmail.com>
Date: Sun, 12 Feb 2017 09:27:21 -0600
And if they interfere with your operation, you need to complain long and loud. They don't hesitate a second to get nasty about broadcast or ham related interference to their equipment or spectrum (ev
Cell sites are generally pretty quiet. The whole site pretty much runs on batteries. Tower top equipment is always connected via fiber data lines and -48VDC power lines. RF amp outputs always go thru
The one exception to this are microwave backhaul dishes on sites that aren't connected to the regional switch via fiber. Quite often the dish is connected to the shelter via CAT5 cable. -Steve K8LX T
I hadn't really looked close to the spectrum in a while, and hadn't really kept notes, since it's not really a major problem; the 125KV line is ALWAYS quiet except in rare cases of dense fog; it's th
One other thing I should mention: the term cell site can be a little ambiguous. Cell carriers share tower space with other services that might be a little less careful with their systems. If a carrie
Been in the cell business for 21 years now and never had a ³Ham issue with noise on either side². Not saying you wonıt get a GC stuck on stupid sometime though. 73 Dave n4zkf e-mail: n4zkf@n4zkf.com