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Music wiring and switching

 
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nulrich(at)technq.com
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PostPosted: Wed Apr 19, 2006 3:46 pm    Post subject: Music wiring and switching Reply with quote

I'm installing a Garmin 347 audio panel, their new one. I also have a Garmin
396, and I'd like to wire the XM radio audio from the 396 to the music
inputs on the 347. I was planning to also wire in external music input jacks
for both the crew and the passengers. I thought I'd install two switches,
one for the pax and one for the crew, that switched between XM audio and
external audio.

Unfortunately, from what the installation manual says, the 347 audio panel
has two music inputs, one for the crew and one for the passengers, and there
is no way to have the pax hear the crew audio (or vice versa). This is
different from the GMA 340 from what I understand. I'm assuming I can't wire
the XM audio output from the 396 to both music inputs through a switch, as
the volume would be reduced if both crew and pax were listening to the XM
audio as opposed to just crew or just pax.

Anyone have ideas about how to make this work? I'd really like for both the
crew and passengers to be able to listen to the XM audio at times, but at
other times I'm sure the passengers and crew will want to listen to
different audio sources.

Thanks,

Nathan Ulrich
nulrich(at)technq.com


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aadamson(at)highrf.com
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PostPosted: Wed Apr 19, 2006 4:19 pm    Post subject: Music wiring and switching Reply with quote

Oh, shucks, I'm not going to be a bunch of help, altho I saw this documented
when I was websurfing a few months ago. Go google for the 340 and the PSE
audio panels. In fact, maybe its on the PSE website in a tech note. This
is actually pretty similar to the 340 and the PSE audio inputs... I just
can't remember where I saw the information.... Dang it... When all else
fails
Also as a fall back, here is the 340 installation manual, you could compare
notes to make sure it's the same. I believe it is.

http://www.highrf.com/Rockets/Legacy/GMA340AudioPanel_InstallationManual.pdf

Sorry,
Alan

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stein(at)steinair.com
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PostPosted: Wed Apr 19, 2006 5:49 pm    Post subject: Music wiring and switching Reply with quote

Actually, I don't think it's mcuh of a problem because both the PMA and -347
allow you to configure the music inputs (especially "music 1") which can be
selected in the "all" position where everyone hears the input, or just the
pax, etc.. right from the Audio Panel itself. The PSE is a bit stronger in
the distribution capabilities than the GMA, but both have quite a few
options on them.

Another way that is the easiest and quickest way around this issue with both
the -347 and the PMA8000x's is to just use one of the unused "switched"
inputs on the audio panel itself and forget about the actual music inputs.
Not many are actually using the ADF or DME inputs, and although they are not
a soft mute, they are switchable right from the panel and anther good input
option for audio (those of you needing a Chelton Audio Mute this is a good
option). Just simply use the ADF, or DME, etc.. input for the XM music.

Hope that helps a little. Both manuals (PSE and GMA) will tell you how you
can configure the music inputs to do virually anything you want them to.

Cheers,
Stein.

[quote]--


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aadamson(at)highrf.com
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PostPosted: Wed Apr 19, 2006 6:21 pm    Post subject: Music wiring and switching Reply with quote

But, but but... While I've not wired my audio panel yet, isn't the ADF or
DME inputs MONO only? I didn't think they provided for Stereo?

Alan

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brian



Joined: 02 Jan 2006
Posts: 643
Location: Sacramento, California, USA

PostPosted: Thu Apr 20, 2006 5:54 am    Post subject: Music wiring and switching Reply with quote

SteinAir, Inc. wrote:

Quote:
Another way that is the easiest and quickest way around this issue with both
the -347 and the PMA8000x's is to just use one of the unused "switched"
inputs on the audio panel itself and forget about the actual music inputs.
Not many are actually using the ADF or DME inputs,

They aren't stereo and not suitable for music.

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Brian Lloyd 361 Catterline Way
brian-yak at lloyd dot com Folsom, CA 95630
+1.916.367.2131 (voice) +1.270.912.0788 (fax)

I fly because it releases my mind from the tyranny of petty things . . .
- Antoine de Saint-Exupery


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