[RFI] router RFI

[N1BUG]

On 03/04/2013 12:34 AM, Jim Brown wrote:

> Dale and Cortland -- something you could do for us is provide a good
> description of the spectra that typically results from Ethernet traffic
> so that we can identify it. Those slightly modulated carriers (plus a
> lot more than those listed here), and broadband hash on 2M, is all that
> I've identified myself.

I would like to see that too. I have a good number of the carriers 
on HF, some from my own network, some from neighbors. I had some 
very strong ones on 6 meters from my own network, partially owing to 
the fact I have 200 feet of CAT6 (shielded, but as we know the 
shield does no good since the devices are not shielded) feeding an 
access point at 90 feet on one of my towers. The 6 meter beam is at 
103 feet on another tower 140 feet away. I was able to get the 6M 
carriers down some 20 dB with a rather odd combination of ferrite cores.

The particular situation I asked about that started the recent 
thread is an ethernet related carrier on or about 147.210 MHz. It is 
not at my station. I will be taking some approximate measurements on 
it Tuesday. This particular carrier needs to go away, if possible. 
It is at the home of our county EC and ARES coordinator. Our ARES 
repeater happens to be on 147.210. He has very little room to move 
his 2 meter antenna out of the way. I'm hoping it isn't too strong 
to control with ferrites. If it is, we may be out of luck.

-- 
Paul Kelley, N1BUG
RFI Committee chair,
Piscataquis Amateur Radio Club
http://www.k1pq.org