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How to Use Your iPhone with Your Garmin Audio Panel

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bobair(at)me.com
Guest

Posted: Mon Jul 16, 2012 6:34 pm Post subject: How to Use Your iPhone with Your Garmin Audio Panel

Folks,



Rather than ask a question, I thought I'd pass on one solution I came up with if you want/need to plug your iPhone into your Garmin Audio Panel (my audio panel is the non-TSO'd GMA 240 but I assume this approach will work with other Garmin audio panels, at least).  I need this capability to call ATC for IFR clearances from uncontrolled fields where there aren't other communication capabilities.  

Best regards,

Bob

GlaStar N248BF

~460 Hours

Per "Peter" at Garmin Tech Support, the three conductors in the 2.5 mm patch cord that plugs into the audio panel have the following functions:  



	Tip = Mic



	Ring = Audio



	Sleeve = Common/Ground.



He had access to documentation for the iPhone's four-conductor, 3.5 mm plug/receptacle and he said it is wired up like this:



	Tip = R.H. Audio Channel



	Ring No. 1 = L.H. Audio Channel



	Ring No. 2 = Common/Ground



	Sleeve = Mic.



I found the following item (iPhone TTY Adapter) on Apple's on-line store. http://store.apple.com/us/product/MA854G/A?fnode=MTY1NDAzOQ#overview	(The part number is MA854G/A.)  Our local Apple store had one in stock so I bought it.  It is pretty spendy at $19 but it is an Apple, not third-party, product and the build quality looks good (it is very small and could get lost easily). You may be able to find another source that is less expensive.  



I checked it out with my ohmmeter.  Here are the results:



		Male 3.5 mm Plug		Female 2.5 mm Receptacle



		Tip					(open)



		Ring No. 1			Ring

	

		Ring No. 2			Sleeve



		Sleeve				Tip



I tested it out tonight with the 2.5mm patch cord that came with the audio panel and it works just fine.  I got mono audio in both ears on my Bose headset.  My wife said she could hear me just fine (this was a ground test without the engine running) and I could hear her just fine.  As you place the call, you do hear all the normal ringing sounds as the call goes through.  



So now you know where to get an item that will allow iPhone users to plug their phone into their Garmin audio panels.

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tim2542(at)sbcglobal.net
Guest

Posted: Mon Jul 16, 2012 8:10 pm Post subject: How to Use Your iPhone with Your Garmin Audio Panel

Thanks Bob! 

I've been meaning to figure this out myself. I have a PSE panel but Im going to assume there is some sort of standard on these and just order the adapter from Amazon. I see them there all the way from the genuine apple product at $14 down to some that cost less than the shipping.

Tim



Sent from my iPad



On Jul 16, 2012, at 7:33 PM, Bob Falstad <bobair(at)me.com (bobair(at)me.com)> wrote:



 	  Quote: 	
		  Folks,



Rather than ask a question, I thought I'd pass on one solution I came up with if you want/need to plug your iPhone into your Garmin Audio Panel (my audio panel is the non-TSO'd GMA 240 but I assume this approach will work with other Garmin audio panels, at least).  I need this capability to call ATC for IFR clearances from uncontrolled fields where there aren't other communication capabilities.  

Best regards,

Bob

GlaStar N248BF

~460 Hours

Per "Peter" at Garmin Tech Support, the three conductors in the 2.5 mm patch cord that plugs into the audio panel have the following functions:  



	Tip = Mic



	Ring = Audio



	Sleeve = Common/Ground.



He had access to documentation for the iPhone's four-conductor, 3.5 mm plug/receptacle and he said it is wired up like this:



	Tip = R.H. Audio Channel



	Ring No. 1 = L.H. Audio Channel



	Ring No. 2 = Common/Ground



	Sleeve = Mic.



I found the following item (iPhone TTY Adapter) on Apple's on-line store. http://store.apple.com/us/product/MA854G/A?fnode=MTY1NDAzOQ#overview	(The part number is MA854G/A.)  Our local Apple store had one in stock so I bought it.  It is pretty spendy at $19 but it is an Apple, not third-party, product and the build quality looks good (it is very small and could get lost easily). You may be able to find another source that is less expensive.  



I checked it out with my ohmmeter.  Here are the results:



		Male 3.5 mm Plug		Female 2.5 mm Receptacle



		Tip					(open)



		Ring No. 1			Ring

	

		Ring No. 2			Sleeve



		Sleeve				Tip



I tested it out tonight with the 2.5mm patch cord that came with the audio panel and it works just fine.  I got mono audio in both ears on my Bose headset.  My wife said she could hear me just fine (this was a ground test without the engine running) and I could hear her just fine.  As you place the call, you do hear all the normal ringing sounds as the call goes through.  



So now you know where to get an item that will allow iPhone users to plug their phone into their Garmin audio panels.

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

stuart(at)stuarthutchison
Guest

Posted: Tue Jul 17, 2012 2:24 am Post subject: How to Use Your iPhone with Your Garmin Audio Panel

Thank you Bob.  I'm glad to avoid the extra research  for my iPhone and a GMA-240 as well ! 

   

 



   From:  owner-aeroelectric-list-server(at)matronics.com  [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Bob  Falstad

Sent: Tuesday, July 17, 2012 12:33 PM

To:  aeroelectric-list(at)matronics.com

Subject: How to Use  Your iPhone with Your Garmin Audio Panel

 

Folks, 



 Rather than ask a question, I thought I'd pass on one solution I came up  with if you want/need to plug your iPhone into your Garmin Audio Panel (my audio  panel is the non-TSO'd GMA 240 but I assume this approach will work with other  Garmin audio panels, at least).  I need this capability to call ATC for IFR  clearances from uncontrolled fields where there aren't other communication  capabilities.  

 



 Best regards,

 



 Bob

 GlaStar N248BF

 ~460 Hours

 



 Per "Peter" at Garmin Tech Support, the three conductors in the 2.5 mm  patch cord that plugs into the audio panel have the following functions:   



Tip =  Mic



Ring =  Audio



Sleeve =  Common/Ground.



He had access to documentation for the iPhone's  four-conductor, 3.5 mm plug/receptacle and he said it is wired up like  this:



Tip =  R.H. Audio Channel



Ring No. 1 = L.H. Audio Channel



Ring No. 2 =  Common/Ground



Sleeve = Mic.



I found the following item  (iPhone TTY Adapter) on Apple's on-line store. http://store.apple.com/us/product/MA854G/A?fnode=MTY1NDAzOQ#overview (The part number is  MA854G/A.)  Our local Apple store had one in stock so I bought it.  It  is pretty spendy at $19 but it is an Apple, not third-party, product and the  build quality looks good (it is very small and could get lost easily). You may  be able to find another source that is less expensive.  



I checked  it out with my ohmmeter.  Here are the results:



Male 3.5 mm Plug Female 2.5 mm  Receptacle



Tip (open)



Ring No. 1 Ring



Ring No. 2 Sleeve



Sleeve Tip



I tested it out tonight with the 2.5mm  patch cord that came with the audio panel and it works just fine.  I got  mono audio in both ears on my Bose headset.  My wife said she could hear me  just fine (this was a ground test without the engine running) and I could hear  her just fine.  As you place the call, you do hear all the normal ringing  sounds as the call goes through.  



So now you know where to get an  item that will allow iPhone users to plug their phone into their Garmin audio  panels.



   [quote][b]

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

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