Audio Selector; Cockpit Speaker; Intercom Operation - PS Engineering PMA8000D Pilot's Manual And Operation Manual

tion. When a com is selected for receive, it Receiver selection
will stay selected until manually deselected,
even if you select, and then deselect its trans-
mitter.
The PMA8000D gives priority to the pilot's
audio panel radio Push-To-Talk (PTT) if both
panels have selected the same transmitter.
Transmitter selection
If the Monitor function is activated
(Monitor), the audio from this radio will be muted when the primary radio
(selected for transmit) is receiving a signal.
In cell phone mode, the crewmember is connected to the cell phone, but still
hears the COM radios selected. The radio PTT will switch the mic to the
selected com, and allow continued aircraft communications to continue. (See
Page 6—Cellular telephone—for more details)

Audio Selector (4)

These buttons select the switched navi-
gation receivers. The DME input (if
present) is also shared with AUX. In
SPLIT mode, only the pilot will hear
selected navigation audio.

Cockpit Speaker (5)

This button will place all selected audio on the crewmember's
cockpit speaker when this switch is selected.
Depending on installation, important audio alerts such as radar
altimeter or autopilot disconnect will come over the speaker
even if it is not selected, while other unswitched inputs, will only be present
if the SPR button is selected. Consult your professional avionics installer for
these important configuration details.

Intercom Operation

IntelliVox® VOX-Squelch
IntelliVox® is PS Engineering's proprietary intercom squelch control.
Through the use of digital processors, each microphone is monitored, and
opens instantly when human speech is detected. This results in seamless con-
versations aboard the airplane for crew and passengers, without syllable clip-
ping or fatigue-inducing noise.
No adjustment of the IntelliVox® squelch is necessary. There is no field ad-
justment. The system is designed to block continuous tones, therefore people
humming or whistling in monotone may be blocked after a few moments.
Oct. 2014 PMA8000D Pilot Guide
202-890-0304 Page 3