For example http://www.telephone-wiring.co.uk/external-cable-12-...

[better link]

Edited by deleted (Wed 12-Sep-12 15:12:00)

Is the ADT filtered?

They don't use a microfilter, but a hardwired filter. Changes to the wiring may have mad the non-filtered alarm have a greater impact on the ADSL.

brilliant.

The 2pair internal cable I found at wickes and b&q is thin, slightly smaller than a pencil.

Would this 2 pair black cable be thin or just as big the one BT wired upto the new master socket?

I will check if maplins to them, that way I can see it before buying it

The alarm has a broadband filter inside the control panel. I have had the system for over two years now and would have noticed a difference by now.

Like I said, before the speed problems, I was getting 6.5MB in my room, where the router is, thats at the end of the whole extension. My socket is the last one.

But now, its nearly half.

when the adt guy comes around to service the system and battery change, I will ask him if he can disconnect the filter and see if I get an improvement.

That is real BT cable - solid copper, twisted pair and external. It's unlikely the High St shops have it.
If you're going to connect it to existing wires, I recommend gel-filled crimps as well.

the cable will go from the upstairs front bedroom master socket, outside, down and back into the downstairs front room.

what is a gel-filled crimp???

Just checking, as so many don't know one is needed

Crimps (connectors) that BT use to join cables together.

The use of gel makes them good for outdoors (inside another housing). Not used that often for internal extension wiring, junction boxes are more common.

In reply to a post by JaspalSingh:

brilliant.

The 2pair internal cable I found at wickes and b&q is thin, slightly smaller than a pencil.

Would this 2 pair black cable be thin or just as big the one BT wired upto the new master socket?

I will check if maplins to them, that way I can see it before buying it

My next door neighbour used internal grade (white) cable for an external extension a few years ago and now it's deteriorating due to UV and weathering - for a long term solution it's certainly advisable to use the external grade cable that BatBoy suggested.

One thing to bare in mind though is that it's against fire regulations to use more than 2 metres of external cable internally.

I have ordered the insertion tool from amazon, as soon as that arrives, hopefully fingers crossed and that all the Gods in the heavens and beyond have mercy on me, that when I replace that old wire everything should work fine and proper.