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Audio panel move

 
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RV7ASask



Joined: 25 Jan 2006
Posts: 36

PostPosted: Sun Oct 17, 2021 6:47 am    Post subject: Audio panel move Reply with quote

I am in the process of upgrading my panel and would like to move the Garmin GMA 240 audio panel across the instrument panel. It would be a move of about two feet. Can I make two extension wire harnesses and just connect across? I would use shielded wires where they are already in use but I am concerned about the integrity of the extensions? Is there a feedback/noise potential doing this? Is there a better way?
Thanks
David


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Ceengland



Joined: 11 Oct 2020
Posts: 378
Location: MS

PostPosted: Sun Oct 17, 2021 7:13 am    Post subject: Audio panel move Reply with quote

On 10/17/2021 9:47 AM, RV7ASask wrote:
Quote:


I am in the process of upgrading my panel and would like to move the Garmin GMA 240 audio panel across the instrument panel. It would be a move of about two feet. Can I make two extension wire harnesses and just connect across? I would use shielded wires where they are already in use but I am concerned about the integrity of the extensions? Is there a feedback/noise potential doing this? Is there a better way?
Thanks
David
SubD connectors? If it were me, I'd certainly make up a male-female

extension. All the impedances in an audio panel are quite low,
minimizing noise pickup risk. I'd consider the biggest risk the
fabricator him/her-self. If using the quality gold plated machined pins,
I wouldn't think twice about making up extensions.

Charlie

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Charlie
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nuckolls.bob(at)aeroelect
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PostPosted: Sun Oct 17, 2021 12:41 pm    Post subject: Audio panel move Reply with quote

Quote:
SubD connectors? If it were me, I'd certainly make up a male-female extension. All the impedances in an audio panel are quite low, minimizing noise pickup risk. I'd consider the biggest risk the fabricator him/her-self. If using the quality gold plated machined pins, I wouldn't think twice about making up extensions.

Charlie

Agreed! What connectors are you needing Dave?
I may have some in the project residuals.


Bob . . .

Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"


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RV7ASask



Joined: 25 Jan 2006
Posts: 36

PostPosted: Sun Oct 17, 2021 4:31 pm    Post subject: Re: Audio panel move Reply with quote

Thanks gentlemen. The GMA 240 has two 44-pin connectors so, I presume, I would require four connectors, two male and two female to make extension harnesses.
Bob, if you have these connectors in your stores, I would certainly be interested in purchasing them and paying postage to Canada.
Thanks again.
David


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user9253



Joined: 28 Mar 2008
Posts: 1906
Location: Riley TWP Michigan

PostPosted: Mon Oct 18, 2021 3:45 am    Post subject: Re: Audio panel move Reply with quote

Why install connectors in a location that will never need to be taken apart?
Just splice in extra wire and solder or crimp.


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Joe Gores
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rnjcurtis(at)charter.net
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PostPosted: Mon Oct 18, 2021 4:18 am    Post subject: Audio panel move Reply with quote

I think I would find it much easier to make a short extension on the bench than to crawl up into the instrument panel with my soldering iron and various other tools, but that's only me, a very old fart!
Roger
Sent from my Verizon Wireless 4G LTE smartphone

-------- Original message --------
From: user9253 <fransew(at)gmail.com>
Date: 10/18/2021 07:45 (GMT-05:00)
To: aeroelectric-list(at)matronics.com
Subject: AeroElectric-List: Re: Audio panel move

--> AeroElectric-List message posted by: "user9253" <fransew(at)gmail.com>

Why install connectors in a location that will never need to be taken apart?
Just splice in extra wire and solder or crimp.

--------
Joe Gores


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PostPosted: Mon Oct 18, 2021 6:58 am    Post subject: Audio panel move Reply with quote

At 07:18 AM 10/18/2021, you wrote:
Quote:
I think I would find it much easier to make a short extension on the bench than to crawl up into the instrument panel with my soldering iron and various other tools, but that's only me, a very old fart!

From one ol' fart to another, agreed. MUCH reduced
chance for errors that are EASY to make and very
difficult to find/fix.

44 pin devices would be the sub-miniature D-Subs.
Sorry. No inventory on that series of devices.



Bob . . .

Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"


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RV7ASask



Joined: 25 Jan 2006
Posts: 36

PostPosted: Tue Oct 19, 2021 7:50 am    Post subject: Re: Audio panel move Reply with quote

Thanks for the input. I was just surfing Amazon when the email came in from Ron suggesting "Amphenol CS-DSDHD44MF0-005 44-Pin HD44 Deluxe D-Sub Cable, Shielded, Male/Female, 5', Gray". I see they also have one in 2.5' "AMPHENOL CS-DSDHD44MF0-002.5" which I think will be perfect.
Thanks Again.
David


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