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Page 3
July 2015
PMA8000E Pilot Guide
Swap Mode (Switch from COM 1 to
COM 2 or COM 3 remotely)
With a yoke mounted, normally open mo-
mentary switch, the pilot can change from
the current COM transceiver to the other by
depressing this switch. To cancel "Swap
Mode," the pilot may either press the yoke
mounted switch again, or select a different
COM with the XMT buttons. The PMA8000E can be configured by the user
to either Swap COM 1/COM 2, or COM 1/COM 2/COM 3. To change this
function, press and hold the swap switch, and push and release the COM 3
RCV button momentarily.
Stuck Microphone Protection
The PMA8000E will sense if the pilot or copilot radio PTT remains keyed
for more than 32 seconds. When a stuck mic is detected, the key input is
ignored, and the other crewmember can transmit normally. If the stuck be-
comes ungrounded, normal operation is restored.
Communications Receive (RCV) Selection (3)
To listen to the other radio, press the upper button, in the RCV (receive) sec-
tion. When a com is selected for receive, it will stay selected until manually
deselected, even if you select, and then deselect its transmitter.
The PMA8000E gives priority to the pilot’s audio panel radio Push
-To-Talk
(PTT) if both panels have selected the same transmitter.
N O T E
Due to the nature of VHF communications signals, and the size constraints
in general aviation aircraft, it is probable that there will be some bleed-over
when both flight crew members transmit at the same time on different radios,
particularly on adjacent frequencies. PS Engineering makes no warranty
about the suitability of dual transmit in all aircraft conditions.
Audio Selector (4)
Navigation receiver audio is selected
through five momentary, push-button,
backlit switches.
The users can identify which receivers are
selected by noting which green switch LEDs are lit. Navigation aid audio
push buttons are labeled
NAV
1,
NAV
2,
ADF
and
AUX
(auxiliary). DME
audio (if present) will come through when the
AUX
button is selected. When
one of these buttons is pressed, the mode is active, and the LED will illumi-
nate. Press the switch again and it will be "off" and remove that receiver
from the audio output.
Transmitter selection
Receiver selection
