T i m wrote:
On Sun, 02 Apr 2006 18:13:19 +0100, Owain
wrote:
T i m wrote:

If one wanted to extend (say) the composite video and l/r audio
signals from (say) a DVD player to a screen in another area (about 7m
as the cable runs .. and assuming one doesn't need planning
permission or Part P Annex A ("Re-wiring audio equipment in yer own
home")) what would be the best cable to use for the least losses /
issues please?
I believe the video needs a ~75 ohm co-ax

that would do fine. FWIW it would be carrying a signal of around
1/100th the frequency its designed to carry.


and I'm also aware some of
the 'better' cables can get quite big

no need, more marketing than anything.


but this cable needs to
terminate in a basic phono connector? It will probably be 'lost' in
the floorspace / trunking down an internal wall ..

A lot depends on the phono connector; you can get "professional" ones

Something like RG59B/U / Belden 8241 (Maplin XS52G) would probably be
suitable. 6mm O/D so would need a suitable phono plug, perhaps Maplin JU06G

Wow, thanks for that fella ;-)

I suppose the solid core would be ok for the static 'stuck on the
floorspace' runs but for the ends shouldn't it really be stranded (I
assume you can get it like that) for flexibility ..?

I'd use one piece of flex, stranded, rather than join them. Solid core
would do if rarely moved, but not ideal.


Would the L/R audio leads *ideally* need to be individually screened
(to prevent xtalk) and if so do they do a 'Figure-of-eight' cable
(video+2 x audio) that would give decent specs and still keep the
audio cables separate (assuming that matters etc)?

Any of the mid range figure of 8 twin screened would be ok, avoid the
bottom price very thin stuff. And avoid oversized things. 4mm or 5mm
o/d per each half of the figure of 8 will be fine.


I suppose environmental noise (electrical and audible), the quality of
the overall equipment and the accuracy of the ear of the listener will
all also play a part ..?

not really, the cables mentioned here are way above the spec where they
would make any effect on the sound.


NT