Just an update on my U-verse RFI problem. After it was first installed using
the existing RG-59 home runs to each box, running 100 watts on 15, 40 and 80
meters would lock up the boxes connected to coax. I was able to help the
situation by grounding the main splitter but could not run over 300 watts.
Saturday I ran CAT6e to the master bedroom through the attic from the modem in
the radio room. Afterwards, I ran 700 watts making 300 contacts in the ARRL
DX CW contest on 10, 15, 20, 40 and 80 meters with no problems. After I
disconnected the RG59 to the master bedroom from main splitter, I installed a
75
ohm termination on the splitter. The 3-port splitter still feeds the kitchen
and living room. Previously when testing, I noticed the boxes in the kitchen
and living room lose the LINK light and would require a power-cycle in order to
start working again after transmitting high power. After eliminating the RG59
run to the master bedroom, the other two boxes never lost LINK although I did
not check to see if the screens blocked up or not. I still plan on running
CAT6e to the kitchen and master living room but RF must have been getting into
the coax run to the master bedroom which incidentally was the shortest coax run
(the splitter is outside on the other side of the master bedroom). I am happy
that I can operate without worrying about RFI to the TVs, Internet or Phone.
Actually never had a problem with the Internet or incoming U-verse signal.
Problem was always in house.
73, Don AA5AU
----- Original Message ----
From: Donald Hill <aa5au@aa5au.com>
To: RFI <RFI@Contesting.com>
Sent: Tue, February 15, 2011 4:33:59 PM
Subject: Re: [RFI] U-Verse problem update
I just got U-verse a couple weeks ago. It's FTTN. At the customer interface
box outside my house, they ran CAT5 to the radio room where the modem is
installed. From the modem they connected to an existing 75 coax run (can't
tell
if it's RG-59 or RG-6 but I think it's 59) back to the where the 75 ohm coax
home runs terminate to a splitter. The technician replaced all connectors on
all 75 ohm coax runs and replaced the splitter with one that will pass their
data. There are three TV boxes, each having a coax run back to this splitter.
The TV in the radio room is ethernet to the modem as is my shack computer.
Keying 100 watts on 40 and 80 meters locked up the boxes on all the TVs where
the boxes were connected to coax. The Internet stayed up on the shack computer
and the radio room TV was unaffected.
I checked the splitter outside and the technician failed to reconnect the
ground
wire. So I connected the ground wire. I was able to run low power on 40 and
80
but not on 15 meters for some reason (all tests were done using FSK RTTY 100%
duty cycle when keyed). I was unable to run high power over 300 watts. Still
the devices connected to Ethernet were unaffected. I ran a temporary CAT5
through the house to the master bedroom box and connected it to the modem. I
can run any band at any power (up to 500 watts capability of my amps) with no
problems. No problems on the Internet or shack TV. My thought is that I am
getting RF into the coax. I plan on running CAT6e cable home runs from the
modem to TV boxes in the master bedroom, living room and kitchen. There are 4
Ethernet ports on the modem. I will connect those three TV boxes to Ethernet
along with the shack computer (all other computers in the house are wireless).
I will then connect the shack TV to one of the 75 ohm coax inputs on the
modem.
I "think" this might clear everything up.
I had read archives of this reflector where U-Verse users had to change from
Ethernet to coax to eliminate the RFI. My solution appears to be the
opposite.
The other alternative would be to run new RG-6 to each TV but I want to try the
Ethernet solution first.
Any thoughts?
73, Don AA5AU
----- Original Message ----
From: Joe <wa6rkn@gmail.com>
To: RFI <RFI@Contesting.com>
Sent: Tue, February 15, 2011 3:18:39 PM
Subject: Re: [RFI] U-Verse problem update
What bothers me about this is that U-verse in not conducted by copper
cabling..it is all optical fibre...how is an RF signal getting in and being
carried by fibre?
My next door neighbor has U-verse and is not affected by anything I do..his
Dish and cable (Charter) was...I could not use 6 meters with the amplifier
in the evening...which was no biggie, as he was at work during the day. My
75 meter work was getting into his telephone and his fax machine...and THAT
was a big worry. But..after U-verse came in and put in the full optical
cable right up to his modem...all problems went away, no matter what power I
run or where. (Legal limit on down)
My neighbor behind me is always complaining how the CD'ers re tearing him
up...I don't have the heart to accept the blame...the Astroplane antenna'ed
CB'er in the next block is the culprit there. HAR HAR!
Joe Wolfe
WA6RKN
Reno, Nevada
----- Original Message -----
From: "Vince" <rradiohham232@sbcglobal.net>
Subject: [RFI] U-Verse problem update
The next week three workers showed up from
> U-Verse and rerouted his feed line from the pole to the other side of
> the house, and it looks as they put in a shielded wire from the pole,
> something that was not in place with the original installation, this
> also shortened the coax feed to his router, I was not there when they
> did this, but he had phoned me at the time.
>
> Since this work was done on his U-Verse system , everything is working
> fine now, he can now transmit on all the bands and use the amplifier. I
> have waited for some time to give a update on this to see how everything
> has worked out in the long run.
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