messydeer
Joined: 13 Feb 2006
Posts: 214
Location: Bellingham, WA
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 Posted: Sat Dec 03, 2011 3:47 pm Post subject: MGL Enigma audio alert to RST 442 intercom |
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Bob and crew:
I'm plugging away at my project of converting my RST 442 portable intercom to a panel mount that would interface with my DX15 handheld radio. My MGL Enigma EFIS has an audio alert feature that could be wired into the intercom system, but I'm not sure where the best place would be and what components to include.
I'd thought of simply wiring it into the 'tape in' terminal, but this would get muted with any incoming audio. How would you go about this? Would a 10µf capacitor in series with the EFIS audio and terminal 1 of S102, the Pilot - All switch work?
There are also two different output terminals on the back of the Enigma for this:
audio output high level
This output contains high level, low impedance audio (voice prompts and alerts).
This output can drive a small 4-8 ohm speaker directly at up to 1W power. This
output can also be connected to intercom panels that accept high level inputs.
Audio output low level
This output contains low level high impedance audio intended for intercom panels
that provide low level inputs.
I've also attached a page of the manual that gives a little more info.
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| Description: |
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Download |
| Filename: |
MGL Enigma Odyssey installation 21.pdf |
| Filesize: |
1.4 MB |
| Downloaded: |
370 Time(s) |
_________________
Dan |
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