.... and to ask again. What actual fault is this causing ??

And the majority of sources that reduce noise margin are carried over the air, rather than through the mains

Interestingly the three sources of inteference I have had to deal with in my house were my old laptop mains lead, the power supply for my christmas lights and having a phone plugged into the bedroom exgtension (now use a cordless). On top of that I cannot have my DAB radio plugged into the same extension lead as my hi-fi amp without getting earth loop hum through the speakers.

There are no issues that i know of with a plasma tv and a router however they are connected to a router providing the mains cables on both applications have the Ferrite core fixed in place as outlined by Panasonic and with the approved Ferrite core that came with the TV

If, as seems likely, it's airborne RF noise from the TV into the router, then you may find that simply moving the router a little and/or rotating it could achieve a null spot. Another thing to try is a 'shorted turn', basically just a loop of wire round the router, each end connected to each other. Difficult to do it with the TV though.

Well, I thought it was contributing to a drop in connection. However, my connection seemed to drop at a specific time last night despite the routing holding on when the SNRM was at around 1.7dB for an extended period.
I'm feeling a little more philosophical today. Clearly the TV isn't causing this drop in connection even though it is contributing to the overall lowering of the lines SNR.

Paul

Pop round here then and I'll show you one.

The ferrite cores on the TV's power cable and at each end of the interconnecting ethernet cable, made no difference to the interference. Panasonic often get things (very) wrong.

@sbrads: I'll give it a try, thanks.

And one thing I've negated to mention up until now and of course has a major bearing is that I'm on a FastPath datastream. I'm toying with the idea of asking Vivaciti to switch interleaving back on though.

Paul

Edited by deleted (Sun 08-Jul-12 11:58:51)

In reply to a post by youngsyp:

Pop round here then and I'll show you one.

The ferrite cores on the TV's power cable and at each end of the interconnecting ethernet cable, made no difference to the interference. Panasonic often get things (very) wrong.

@sbrads: I'll give it a try, thanks.

And one thing I've negated to mention up until now and of course has a major bearing is that I'm on a FastPath datastream. I'm toying with the idea of asking Vivaciti to switch interleaving back on though.

Paul

I think you will find Paul that the Panasonic TV is not the culprit i would say far more likely the router picking up a bad source of REIN from a nearby application than the tv in which i know very well

So it's just a huge coincidence that the moment I switch the TV on, the SNRM drops and the instant I turn the TV off, the SNRN rises back to 'normal' again?

If you care to google the phrase "plasma TV affecting ADSL", you'll see a huge number of hits where people have seen the same or similar issues to mine. Just because you've not experienced it, doesn't mean it doesn't happen.

I thank you for the condescending tone of your response though.

Paul

As a matter of interest, you have never said whether you are switching TV ON from completely OFF or from STANDBY, as many do these days?