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Audio Question

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PaulR

Joined: 13 Nov 2008
Posts: 22
Location: Alabama

Posted: Tue Dec 29, 2009 5:31 pm Post subject: Audio Question

I'm woefully short of 3 conductor shielded wire for wiring the headphone jacks but have plenty of 6 conductor shielded.  Would it cause problems to use this in lieu of the separate pcs. of 3 conductor?  I have a PSE intercom if that makes a difference.



Also, the serial lines that Dynon, Garmin and about everyone else uses are shown both shielded and un-shielded.  As long as ALL equipment utilizing the serial signals are grounded the same place (AVX GND) is it necessary to shield them?



Thanks

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_________________
Paul Rose
N417PR
RV-9A

nuckolls.bob(at)aeroelect
Guest

Posted: Tue Dec 29, 2009 6:10 pm Post subject: Audio Question

At 07:31 PM 12/29/2009, you wrote:

 	  Quote: 	
		  



I'm woefully short of 3 conductor shielded wire for wiring the 

headphone jacks but have plenty of 6 conductor shielded.  Would it 

cause problems to use this in lieu of the separate pcs. of 3 

conductor?  I have a PSE intercom if that makes a difference.


	


   First, I've got a couple thousand feet of shielded

   triple, if that's what you'd LIKE to be using,

   I can make you a great deal on it. On the other-hand,

   twisted pairs in lieu of shielded wires will

   probably be just fine in the cockpit and behind

   the panel. Make sure the magneto p-leads are

   shielded and wired per Z-figures. After that,

   risks to other signals are very low.



 	  Quote: 	
		  Also, the serial lines that Dynon, Garmin and about everyone else 

uses are shown both shielded and un-shielded.  As long as ALL 

equipment utilizing the serial signals are grounded the same place 

(AVX GND) is it necessary to shield them?


	


   As short as they are and living in a behind the

   panel environment, twisted pairs are okay too

   along with any adaptation you care to devise

   with the 6 wire cable you already have.



   Bob . . .

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