RE: CCTV CT100 cable ends

["Brian G. Reynolds" <brian.g.reynolds@xxxxxxxxxxxx>]

Thanks Jim,

I have had a reply from CPC, they say I need this part...

http://cpc.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=CN06757&N=411

But they do not say what Impedance it is?

Why is it when you ask a company for help they never reply to your
questions?

Does this look good to you please?

B.


-----Original Message-----
From: Jim Noble [mailto:yahoo-groups@xxxxxxx]
Sent: 24 October 2005 10:16
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] CCTV CT100 cable ends


Brian G. Reynolds wrote:

> Good site...
>
> Trouble is, I am now even more confused!
>
> If I get the screw on connectors, cpc CN01567,  they are not designed
> for CT100 as you say, so fitting is not so easy.


They have various sizes of screw on f-type connectors. You want one to
suit the outer diameter of the cable you are using.

> 75ohm for screw on but I do like the idea of F connectors then
> converters...


As others have said, always 75ohms. It's a transmission line, so you're
aiming to keep the impedance the same all the way along to minimise
reflections and other stuff I can't remember from signals and systems
lectures 10 years ago...

Jim