Stephen formulated on Wednesday :
Hello,

I notice that a lot of "telephone extension kits" as seen in the
shops, are supplied with flat cable. Does this mean the pairs are not
twisted? And if so, are there any implications to this?

They are not twisted and because of this are much more susceptible to
external interference. You probably have broadband and this type of
extension could well cause interference to the broadband signal,
reducing your bandwidth.


I've just bought some own-brand telephone cable from CPC. It is the
white round cable with twisted pairs inside. Following the advice on
the earlier thread, I bought the 2-pair, 4-conductor cable. I notice
there is a lot of space inside the white insulation. Is it supposed to
be like this or is it because I bought a cheap brand? Does the
manufacturer use the same outer insulation for the 3-pair and 4-pair
cables and is this why there is space in my reel because these "extra"
pairs are missing?

It is always like that and has always been like that. Even the several
thousand pair cable used to be fairly loosely packed.

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk