RadioReference on Facebook   RadioReference on Twitter   RadioReference Blog

Go Back   The Forums > Amateur Radio > Amateur Radio Equipment

Amateur Radio Equipment - For general and technical discussion of Amateur Radio equipment such as transceivers, repeaters, controllers and receivers.

LinkBack Thread Tools Search this Thread Display Modes
  #21 (permalink)  
Old 02-10-2018, 12:21 AM
  Amateur Radio Operator
Amateur Radio
Join Date: Mar 2014
Posts: 861

Originally Posted by RFI-EMI-GUY View Post
For years my AT&T phone was apparently connected at a DEMARC at a neighbors house. They moved, someone new moved in, plugged in a phone and all of a sudden they are on my line. I have to wonder if my phone was being tapped by the original occupant. There are no working spares in the cables in this 40 year old neighborhood. I gave up on AT&T because they could not make DSL work and every repair on the trunk line made it worse.
That sounds similar to the problem I had: Old neighborhood and not enough copper pairs. Now that the people are moving away from POTS lines to cellular and fiber, the likelihood of getting any help with copper is non-existent. A repair request for a copper pair is now weeks away in my area, even for a business.
Reply With Quote
Sponsored links
  #22 (permalink)  
Old 02-10-2018, 10:48 AM
Join Date: Oct 2005
Location: Merrillville, Indiana
Posts: 244

Thank you to everyone for their input. I will post an update once I know more on the situation...

Reply With Quote
  #23 (permalink)  
Old 02-11-2018, 9:16 AM
Join Date: Feb 2018
Posts: 1
Default Did you eliminate possible issues?

If you have not already done this you should try it just to prove the concept.
Disconnect the cable completely and run the same transmitters the same way with no cable.
if that shows no signs of interference plug in a small local antenna like the ones you see for sale everywhere or even just a short length of cable with about a foot of shield removed.
try all you can to make the same reference happen without being connected to the cable.
And do this with and without the cable box inline. I would start with just the tv itself to make sure the tv isn't just very sensitive to stray RF
This could give you an idea if the interference is being delivered by the cable or if there is a weak link in the equipment TV, Box etc
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 10:20 PM.

Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
All information here is Copyright 2012 by LLC and Lindsay C. Blanton III.Ad Management by RedTyger
Copyright 2015 by LLC Privacy Policy  |  Terms and Conditions