Re: OK to use TV coax for microphone?

On Sun, 4 May 2008 08:20:22 -0700, "Richard Crowley"
<rcrowley@[EMAIL PROTECTED]
> wrote:

>"don pearce" wrote...
>> Phil Allison wrote:
>>> "Richard Crowley"
>>>>> (1) Is it ok to use this sort of coax for a microphone?
>>>> Not enough details to answer your question adequately.
>>>> First of all, the kinds of microphones used for audio
>>>> applications (reinforcement, recording, etc.) are usually
>>>> balanced and require cable with two inner wires and an
>>>> outside ****eld/screen.  If you are trying to use a balanced
>>>> mic, then the cable is unsuitable because it is unbalanced.
>>>
>>> ** Not true at all !!
>>
>> Of course a proper microphone cable is SCREENED balanced twisted pair,
so 
>> it enjoys the multiple benefits of electric screening by the outer, the

>> common mode nature of any residual interference and magnetic
interference 
>> cancellation by the twist in the balanced pair. A poorly screened coax 
>> cable such as TV coax has only a part of the first of those so this
claim 
>> is clearly nonsensical. If it were true, professional microphone and
mixer 
>> companies would not be going to the trouble of designing balanced kit.
>
>Don, please don't feed the troll.
>
>The signal-to-noise ratio from Mr. Allison is so poor that he is
>better to be filtered completely out. 
>

Sorry, he normally resides in my killfile where he belongs, but every
now and then I have to reconfigure something and he gets out.

He's back in there with a shot of Ketamine now.

d

-- 
Pearce Consulting
http://www.pearce.uk.com