[Lowfer] Cat 5 cable

[paulc]

Jay,

Like the old telephone engineer told us,

"Coax ain't coax all the tme"!!

That is a Trumism,  By the great Clarence P. Troemel of Bell system ATT,
SNET, TCI, Comcast, etc.

Although he explained in somewhat more technical terms.

PaulC
W1VLF


-----Original Message-----
F

--snip
>
> I still dont understand how an unshielded ,twisted pair can provide
> better isolation than a piece of coax.
> but remember the frequencies involver are relatively low. The important
> factor appears to be isolation
> and a balanced twisted pair will do a better job than a shielded un
> balanced coax

Coax screen effectiveness drops off dramatically at lower frequencies- a
well balanced pair will win hands down at VF and quite a bit higher.  But
remember that terminations have to be balanced as well-otherwise all bets
are off. Overall performance is determined by the design of both the cable
itself and the balance of the terminations.

--snip

> Ah the smell of watch oil and bank cleaning fluid   HAR
>
No need for coffee, eh?

73, Dave, ZL3FJ

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