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202-890-0202
PMA8000B Pilot Guide Rev. 7
This pilot guide provides detailed operating instructions for the PS
Engineering PMA8000B, Audio Selector Panel/Intercom Systems.
Please read it carefully before using the equipment so that you can
take full advantage of its capabilities.
This publication covers the basic operating areas of the PMA8000B
systems. They are Com Transceiver Selection, Audio Selector, Inter-
com, and Marker Beacon Receiver, utility jack and the configuration
buttons.
PMA8000B controls
Power Switch (1) (EMG-Fail Safe Operation)
Unit power is turned on and off by pushing the volume knob. In the
OFF
or "
EMG
" position, the pilot headset is connected directly to
Com 1 as well as unswitched input #1. This allows communication
capability regardless of unit condition. Any time power is removed or
turned
OFF
, the audio selector will revert to fail-safe mode.
The power switch controls all audio selector panel functions, inter-
com and marker beacon receiver. All pushbutton selections will be
remembered and return to the last state when turned on.
Communications Transmit (XMT) Selection (2)
There are two pushbuttons associated with the transmitter selection.
The two lower buttons (# 2) control which transceiver is selected for
transmit. The top row of pushbuttons (# 3) allows selection of the re-
ceiver audio. Push the lower button to select the desired COM trans-
mitter.