PS Engineering PMA8000C Pilot’s Guide User Manual
Page 5
202-890-0303
Page
5
Sept. 2012 PMA8000C Pilot Guide
A
LL
: All parties will hear the aircraft radio and intercom. Crew will hear
Music 1, passengers can hear Music 1 or 2. The music mutes in accordance
with the muting mode selected.
C
RW
: (Crew) Pilot and copilot are connected on one intercom channel and
have exclusive access to the aircraft radios. The passengers have their own
intercom. The music that the crew and passengers will hear is determined by
the Smart Function Keys.
Marker Beacon Operation (9)
The Marker Beacon Receiver uses visual and audio indicators to alert you
when the aircraft passes over a Beacon transmitter.
The Blue, Outer Marker lamp has an associated 400-Hertz Morse 'dash' tone.
The lamp and tone will be keyed at
a rate of two tones/flashes per sec-
ond when the aircraft is in the range
of the Outer Marker.
The Amber, Middle Marker lamp is
coupled with a 1300 Hertz tone,
keyed alternately with short 'dot' and long 'dash' bursts at 95 combinations
per minute.
The White, Inner marker lamp has a 3000 Hertz 'dot' tone, and will be keyed
at a rate of six times per second.
Marker Beacon Receiver audio can be added to the selected audio pushing
the "MKR switch momentarily and noting the AUD indicator lights. There is
a service adjustment located on the top of the unit to adjust the marker re-
ceiver volume if desired.
The MKR button is also used to test the indicator lamps and mute the marker
audio. Pressing the MKR button for one second will cause the marker audio
to mute. The next beacon received will re-activate the audio.
Holding the MKR button for one second also activates marker test, labeled
"T/M" and illuminates all three lamps simultaneously to confirm the lamps
(internal and external) are working. Releasing the button returns to the last
sensitivity.
The marker can be set for high sensitivity with an external switch. In the
High sensitivity mode, the LOW indicator will extinguish.
Split Mode
The split mode can be activated at any time by
pressing the COM 1 and COM 2
OR
COM 3
XMT buttons at the same time. This places the
pilot on COM 1 and the Copilot on COM 2 or
COM 3. If COM 2 and COM 3 XMT buttons are