[Elecraft] K3 TVI on 40 meters only

Lynn W. Taylor, WB6UUT KX3.1 at ColdRocksHotBrooms.com
Sat Aug 26 13:58:55 EDT 2017


Went back to Mike's original message and read it more carefully.

First, he's reporting that his CW signal interferes with his TV, not the 
other way around.  It's not the VHDSL (probably) signal getting out, but 
his 40 meter signal getting in.

UVerse is 100% digital, not analog.  He describes how the picture breaks 
up, and that's exactly what happens when there is a lot of packet loss.

I'd bet he'd notice internet problems at the same time as the TVI.

All of the TVs have the same issue at the same time, so it's not the 
ethernet running around the house, or the WiFi, it's between the UVerse 
box and the cabinet out on the street (the cabinet is fed by fiber).

Here's the fun bit, you mention "poor quality paired cable."

UVerse does not install a new drop.  They take whatever wire happens to 
be there, and use that.  It's guaranteed to be CAT 3 or less.  There 
could be bridge taps, or multiple unterminated jacks in multiple rooms.

It could be RG-59, if there happens to be a coax run to where the 
customer wants the router.  It wouldn't be RG-59 all the way to the 
cabinet.  A mixed-up mess of wiring is not only possible, but likely.

73 -- Lynn

On 8/26/2017 9:59 AM, Jim Brown wrote:
> On 8/26/2017 9:07 AM, Lynn W. Taylor, WB6UUT wrote:
>> That said, the short xDSL part isn't supposed to radiate. 
> 
> "Supposed" is the key word here. Radiation occurs due to several 
> mechanisms.

 > 3) Poor quality paired cable.


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