Is it shielded cable? Sounds like the shield has become a radiator, aka
antenna. Detune it by adding or removing some cable length?
On 1/23/2017 9:32 PM, That One Guy /sarcasm wrote:
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 <[email protected]
<mailto:[email protected]>> 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.
