PS Engineering PMA8000B Pilot’s Guide - Manual (Page 4)

Page 4 202-890-0202 PMA8000B Pilot Guide Rev. 6
and not twisted inside the cover.
Note: For optimum microphone performance, we recommend use of a Mi-
crophone Muff Kit from Oregon Aero (1-800-888-6910,
www.oregonaero.com ).
This will not only optimize VOX performance, but will improve the overall
clarity of all your communications.
You should also keep the microphone out of a direct wind. Moving your
head through an air stream may cause the IntelliVox® to open momentarily.
This is normal. The IntelliVox® is designed to work with normal aircraft
cabin noise levels (70 dB and above). Therefore, it may not always recognize
speech and clip syllables in a quiet area, such as in the hangar, or without the
engine running. This is also normal.
Intercom Volume Control (7)
The small volume control knob adjusts the loudness of the intercom for the
pilot and copilot. It has no effect on selected radio levels, music input levels
or passengers' volume level.
The larger, outer volume control knob controls intercom volume for the pas-
sengers. It has no effect on radio or music levels.
Mono Headsets in Stereo Installation
The pilot and copilot positions work with stereo or mono headsets. If a mon-
aural headset is plugged in to a PMA8000B Stereo installation, one channel
will be shorted and all passengers will lose one channel unless they switch to
the “MONO” mode on the headset.
Intercom Modes (8)
The intercom has three modes. The description of the intercom mode func-
tion is valid only when the unit is not in the "Split" mode. Then, the pilot and
copilot intercom is controlled with the Mute button.
This button cycles through the intercom modes, from top to bottom and then
back up.
I
SO : The pilot is isolated from the intercom and is con-
nected only to the aircraft radio system. He hears the ra-
dios (and sidetone during radio transmissions). The copilot
and passengers will hear the music sources as configured
by the audio panel configuration Function keys. See page
11—Smart Function Keys for more details.
While in ISO Mode, the pilot can elect to hear music #1. First, be sure that
the ISO mode is selected. Then press and hold the TEL button, then hold the
ICS mode button for more than one second. The ICS indicator will blink
slowly to indicate music is present in ISO. The music muting will be the
selected mode.