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Page 3
OCT 2017 PMA8000G Pilot Guide
Operation
PMA8000G controls
Power Switch (1) (EMG-Fail Safe Operation)
The power switch controls all audio selector panel functions, intercom and
marker beacon receiver.
When the unit is turned off, either by pressing the volume control,
or
if the
breaker is pulled removing power, the PMA8000G is in Fail-Safe mode. In
this mode, the pilot’s headset is connected to COM 1 for transmit and re-
ceive, and connected to unswitched input #1 for priority audio alerts. The fail
safe audio will
only
be heard in the left ear of a stereo headset.
Communications Transmit (XMT) Selection (2)
To select COM 1 or COM 2 for transmit, press the XMT 1 or XMT 2 button
on the bottom row. The bottom and top button indicators light, showing that
you will transmit
and
receive on the selected radio.
The PMA8000G has an automatic selector system. Audio from the selected
transceiver is automatically heard in the headsets and speaker (if selected).
This guarantees that the pilot will
always
hear the audio from the transceiver
selected for transmit.
In normal (not Split) modes, the PMA8000G gives priority to the pilot’s ra-
dio Push-To-Talk (PTT). If the copilot is transmitting, and the pilot presses
his PTT, the pilot’s microphone will be heard
over the selected com transmitter.
If the pilot is connected to a cell phone, the pilot
PTT will switch the pilot microphone to the select-
ed com transceiver, and allow aircraft communica-
tions to continue.
The copilot will also be able to transmit on the
Receiver selection
Transmitter selection
