place the poe in a faraday cage, it will resolve it, we have a HAM guy that has something in 800mhz, same issue, suggested he do that, it resolved it, he didnt describe what cage he built
On Mon, Jan 23, 2017 at 9:24 PM, Adam Moffett <dmmoff...@gmail.com> wrote: > This is above my pay grade. > > One of our customers was contacted by AT&T, and the customer put them in > touch with us. AT&T was tracking down a source of interference. The > interference was on a 10mhz wide channel centered on 828mhz. At their > tower, AT&T is seeing it 15-20db above the noise floor, so it's pretty > significant. > > Using their spectrum analyzer they tracked it down to our customer's > house. The customer has a wimax CPE on their roof. Unplugging the CPE > makes the interference go away, plugging it back in brings the interference > back. Every time. AT&T guy goes to another customer's house and > confirms that other CPE at different locations don't produce this > interference. > > We figure it's a malfunction in the CPE, so we replace it. Interference > still present. > We replaced the PoE. Interference still present. > > So we know the Wimax unit doesn't originate the 828mhz signal, but it's > somehow an accidental component of a system that does. > > WTF could be going on? > > -- If you only see yourself as part of the team but you don't see your team as part of yourself you have already failed as part of the team.
