COAX for audio cables ???

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COAX for audio cables ???

Bob - W0GI
I will need to make some audio cables for the new K3 for the LP-PAN to the audio box, and also to the other soundcard.

I think I read somewhere in one of the K3 manuals that it is best to use small coax, as it has better shielding.

Makes sense to me, and LMR100 seems to fit the bill, but at $0.64 per foot, I wonder what else is available?

Not cheesy RS audio cable, but decent coax?

Considering the length involved, the LMR100 isn't going to break the bank. :>)
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Re: COAX for audio cables ???

Jim Brown-10
On Sun, 31 Jan 2010 21:36:46 -0800 (PST), Bob - W0GI wrote:

>I will need to make some audio cables for the new K3 for the
>LP-PAN to the audio box, and also to the other soundcard.

The only important thing about unbalanced audio cable is that
it the shield has low DC resistance. The calls for a decent
copper braid shield. Mini coax like RG176 works fine. So does
ordinary RG58. But remember, I said COPPER BRAID, NOT
ALUMINUM FOIL!  

AND -- resistance isn't even that important if you follow the
simple instructions on bonding all the chassis together with
short pieces of copper. I use either the braid stripped from
coax (equivalent to #12 - #10) or an equivalent piece of THHN
(house wire).

To understand all this, see the Ham Interfacing Power Point
and the chapter on solving problems in the shack in my RFI
Tutorial.

http://audiosystemsgroup.com/publish.htm 

73,

Jim K9YC




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Re: COAX for audio cables ???

John Lonigro
In reply to this post by Bob - W0GI
Bob:
If you go to www.cablesondemand.com, they have all kinds of Amphenol
cables for sale.  I've only ordered from them once (absolutely no
affiliation), but the cables I bought seemed very high quality and
reasonably priced.  They have all kinds of cable, not just audio, but
coax and computer cables as well.

73's,
John AA0VE

Bob - W0GI wrote:

> I will need to make some audio cables for the new K3 for the LP-PAN to the
> audio box, and also to the other soundcard.
>
> I think I read somewhere in one of the K3 manuals that it is best to use
> small coax, as it has better shielding.
>
> Makes sense to me, and LMR100 seems to fit the bill, but at $0.64 per foot,
> I wonder what else is available?
>
> Not cheesy RS audio cable, but decent coax?
>
> Considering the length involved, the LMR100 isn't going to break the bank.
> :>)
>  
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