We have 40-year-old, squirrel-chewed, waterlogged cable in our neighborhood. Lots of unterminated connectors too. COX has spent nothing to maintain it. Switched to FIOS and problems gone.

At the office, we lose Internet every time it rains. I swear Comcast is using the old Civil War telegrapher's lines. FIOS is in the ground on the other side of the street but Verizon won't extend it into our office park.

It is possible to talk about something other than the K4 delivery date.

k4ia, Buck
K3s# 11497
Honor Roll  8B DXCC
EasyWayHamBooks.com

On 8/6/2020 6:00 PM, Dave wrote:
I do not have any chokes or ferries and have the beam on a Glen Martin on the roof. 
Shack on second floor and cable modem & router in shack. Hard wired access 
point and gig switch in living room. No issues.

I’d ask the cable tech to show you that you are causing the interruption. 
Coordinate with a friend to operate your station while you observe what the 
tech sees.

Also, how far from your house is the cable node located? Maybe they have 
loose/poor connections in the network allowing ingress of RF?

My cable company uses 28 MHz upstream channels which are a second harmonic of 
20 meters but I would think RF levels at second harmonic should not affect 
anything.

They probably saw your antenna and pointed the finger.

Dave

Sent from my waxed string and tin cans.

On Aug 6, 2020, at 5:33 PM, eric norris via Elecraft <[email protected]> 
wrote:

Dear Gang:
While looking at Europe banging in on 20m FT8 this morning, I switched over to 
CW, cruised the band, then called CQ DX for a while.  An hour later, a Comcast 
(Xfinity) technician was knocking on the door (no mask) claiming I was knocking 
out service to 600 customers (he said he had traced it to my house) and was 
disconnecting us from the network.  During the entire time, my wife was using a 
VPN network connecting to her office, and I had the KPA1500 connected to the 
router so I could use FANticipator to keep the KPA1500 (The Big Dog) quiet and 
cool.  We had no service interruption.
The router has a mix 31 toroid choke (9 turns) coming out of one port, on a 
cat6 shielded  cable (all cables brand new) then has another choke before going 
into a switch--one cable going into the XYL's room with her computer, another 
cable going through another choke then going into the shack.  We convinced the 
supervisor to rehook us up.
All during my operating time, we had no service interruption at our house.  
This was, however, the first time I had used the KPA1500 with the 20m beam wich 
sits directly above the house--I usually only let the Big Dog bark in wee hours 
of the morning on 40 and 80m.
My house is 65 yrs old, none of the outlets have grounds, not even the 
bathroom.  The entire kitchen is on one circuit, etc, etc.
Before I call the Comcast supervisor, I'm hoping for some advice from the 
group.  Not letting the Big Dog bark during the daytime on 10/15/20m is not  a 
good solution.  In the meantime I'm on WSPR at 1w.  Your advice, please.

73, Eric WD6DBM
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