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Audio Iso Amp with Flightcom 403

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Alfred Buess

Joined: 11 Jan 2006
Posts: 67

Posted: Tue Feb 06, 2007 12:34 pm Post subject: Audio Iso Amp with Flightcom 403

Bob,



I have an Apollo SL30 Nav/Comm and a Flightcom 403 Intercom, that I want to

combine with your audio isolation amplifier. The headphone output of the

SL30 (pin 14) is directly connected with the Recv Audio pin (21) of the 403.

The audio iso amp unit is used to bring together several mono warning tones

and to channel them into the 403 intercom. The 403 has a music input (pins

18 and 19) that is automatically muted when the SL30 is active. As I don't

want the warning tones to be muted (and shut off when the isolate switch of

the intercom is activated), I don't want to hook up the audio iso amp to the

music input. My question: Can I connect the headphone output of the SL30 AND

the output of the audio iso amp (pin 3) BOTH to the Recv Audio pin (21) of

the 403? Or is there another, better solution?



Thanks for your advice!

Alfred Buess

CH-3052 Zollikofen, Switzerland

Europa XS #097, Monowheel, Foam shortwing, Rotax 912S, Airmaster 332 CS

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Bill Denton

Joined: 10 Jan 2006
Posts: 97
Location: Chicago, IL USA

Posted: Tue Feb 06, 2007 12:52 pm Post subject: Audio Iso Amp with Flightcom 403

Why not just run the SL30 through the isolation amp?



--

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Alfred Buess

Joined: 11 Jan 2006
Posts: 67

Posted: Sun Feb 11, 2007 11:29 am Post subject: Audio Iso Amp with Flightcom 403

Sorry folks for repeating my question af last week. Bob: I'd like to know

your answer before I install the audio iso amp. Question:



I have an Apollo SL30 Nav/Comm and a Flightcom 403 Intercom, that I want to

combine with your audio isolation amplifier. The headphone output of the

SL30 (pin 14) is directly connected with the Recv Audio pin (21) of the 403.

The audio iso amp unit is used to bring together several mono warning tones

and to channel them into the 403 intercom. The 403 has a music input (pins

18 and 19) that is automatically muted when the SL30 is active. As I don't

want the warning tones to be muted (and shut off when the isolate switch of

the intercom is activated), I don't want to hook up the audio iso amp to the

music input. My question: Can I connect the headphone output of the SL30 AND

the output of the audio iso amp (pin 3) BOTH to the Recv Audio pin (21) of

the 403? Or is there another, better solution?



Thanks for your advice!

Alfred Buess

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nuckollsr(at)cox.net
Guest

Posted: Sun Feb 11, 2007 9:35 pm Post subject: Audio Iso Amp with Flightcom 403

At 08:25 PM 2/11/2007 +0100, you wrote:



 	  Quote: 	
		  

<ykibuess(at)bluewin.ch>

Sorry folks for repeating my question af last week. Bob: I'd like to know

your answer before I install the audio iso amp. Question:



I have an Apollo SL30 Nav/Comm and a Flightcom 403 Intercom, that I want to

combine with your audio isolation amplifier. The headphone output of the

SL30 (pin 14) is directly connected with the Recv Audio pin (21) of the 403.

The audio iso amp unit is used to bring together several mono warning tones

and to channel them into the 403 intercom. The 403 has a music input (pins

18 and 19) that is automatically muted when the SL30 is active. As I don't

want the warning tones to be muted (and shut off when the isolate switch of

the intercom is activated), I don't want to hook up the audio iso amp to the

music input. My question: Can I connect the headphone output of the SL30 AND

the output of the audio iso amp (pin 3) BOTH to the Recv Audio pin (21) of

the 403? Or is there another, better solution?


	




  Run all aviation audios through the iso amp (mono version) on individual

  input pins. Run iso amp output to the radio headset input of the

  intercom. Run stereo outputs to the intercom inputs set aside for that

  purpose.



  Bob . . .



        ----------------------------------------

        ( IF one aspires to be "world class",  )

        ( what ever you do must be exercised   )

        ( EVERY day . . .                      )

        (                  R. L. Nuckolls III  )

        ----------------------------------------

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