Section Iii Operation; Scope; Communications Transmit (Xmt) Selection (2) - Honeywell Bendix/King KMA 30 Manual

Section III OPERATION

3.1 SCOPE

This section provides detailed operating instructions for the Bendix/King KMA 30, Audio Selector
Panel/Marker Beacon Receiver/Intercom Systems. Please read it carefully before using the equipment so
that you can take full advantage of its capabilities.
This section is divided into sections covering the basic operating areas of the KMA 30 systems. They are
Communications Transceiver Selection, Audio Selector, Intercom, Marker Beacon Receiver and special
functions, including the Bluetooth® functionality in the KMA 30.
Figure 3-1 KMA 30 Operating Controls
Unit power is turned on and off by pushing the volume knob. In the
headset is connected directly to Com 1 as well as unswitched input #1. This allows communication capa-
bility regardless of unit condition. Any time power is removed or turned
to fail-safe mode.
The power switch controls all audio selector panel functions, intercom and marker beacon receiver. All
pushbutton selections will be remembered and return to the last state when turned on.

3.2 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 receiver
audio. Push the lower button to select the desired COM transmitter.
The PMA8000B-Series has an automatic selector system. Audio from the selected transceiver is automati-
cally heard in the headsets and speaker (if selected). You can check this function by switching from C
1 transmitter to Com 2 transmitter by pressing the C
associated Com 2 receive pushbutton indicator light turns green. This guarantees that the pilot will always
hear the audio from the transceiver selected for transmit.
The KMA 30 "remembers" the receiver selection, so that when switching transmitters from C
C 2, if C 2 audio was previously selected, C
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the pilot having to switch Com 1 audio back on, after changing transmitters.
When switching from C
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200-890-5464
Bendix/King by Honeywell
KMA 30 Audio Panel and Intercom System
Installation and Operator's Manual
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1 to C 2 while Com 2 was not previously selected, C
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Page 3-1
or "EMG" position, the pilot
OFF
, the audio selector will revert
OFF
2 transmitter selector pushbutton. See that the
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1 audio will continue to be heard. This eliminates
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1 to
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1 audio will be
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Rev. 1, Aug. 2012