naturerecordists
[Top] [All Lists]

Re: Basic Electricity

Subject: Re: Basic Electricity
From: "Rich Peet" <>
Date: Mon, 17 Jan 2005 17:41:01 -0000

> I would suggest you go and read the link I gave earlier, it's
written by
> a engineer who does not work for Canare, but just sells all types of
> cable. You will find there are advantages in the star quad design
beyond
> the noise resistance. Particularly in high frequency loss on long runs.
> http://www.procosound.com/whitepapers.htm
>

ok, I'll bite.  I will try the two wire version.  Do you want to bet
if it really has a 20 db noise reduction under a 1kw dimmer controlled
lite fixture compared to the same thickness star quad?


> Actually I do find the capabilities in a magnetic field useful in
nature
> recording. Before going to star quad I used to have occasional problems
> in the fields under power lines. Not just the high tension lines, who's
> right of way is often prime frog country, but even under the 15 kV
rural
> power distribution lines. It's amazing how far away from such lines you
> can still pick up hum with lessor designs of cable. Even with star quad
> I've run into places under high tension lines that the fields were so
> strong as to get into the recorder, or into the mic. And in moist
> weather, even without getting in, the crackle of the electrical
> discharge from them will be recorded.

I avoid power lines, you avoid jets.  I got it easier than you.

Rich





________________________________________________________________________
________________________________________________________________________

<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU