Avionics News July 2019 - 36

industry

AUDIO CONTROL
PANEL OR SIMPLE
INTERCOM?
MAKE THE CALL THAT FITS THE PANEL AND NEED
S T O R Y

I

B Y

D A V E

t's rare that an aircraft lacks some form of internal
communications system and a device to manage
output from sundry audio devices. Or both.
Of course, single-seat aircraft really need no intercom
- the pilot can always converse with himself or herself.
But add one or more other people - particularly in
the cockpit - and an intercom becomes a valuable
communications tool.
Without such an international-communications device
as an intercom, conversations among and between the
pilot, crew and passengers become nearly impossible ...
36

avionics news

*

july

2019

H I G D O N

at least without using a voice-straining volume.
Then there's the audio-panel question. A panel with
only one communications source - a VHF comm,
typically - may not benefit from an audio-control panel.
Throw in a VHF nav, with its audio section needed, and
now the panel has two audio sources.
And a couple of switches can still cover controlling
which audio the pilot hears when flying.
But as the count of audio sources increase, so do the
points in favor of using an audio-control panel.
Consider, for example, a common panel configuration



Avionics News July 2019

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