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The M-RK II Scan operating controls are located on the
radio’s front, top and left panels. A 6-button keypad, liquid
crystal display (LCD) for radio status information, microphone
and speaker are on the front panel. The top panel houses a
rotary SYSTEM/GROUP/CHANNEL knob, POWER ON-
OFF/VOLUME control knob and a protected red EMERGENCY
button. An OPTION button, CLEAR/MONITOR button and the
Push-To-Talk (PTT) button are all located on the left side panel.
The Universal Device Connector (UDC) is located on the right
panel and is used while programming the radio and for accessory
connection.
The keypad is used for activation of various EDACS or con
-
ventional features such as menu selection or scan operations.
The display has two, eight-alphanumeric-character lines
used to show the operational mode of the radio. 15 status
indicators, used to indicate various operating conditions such
as transmitter on, channel busy, scanning, or low battery, are
located above and to the right side of the character lines within
the display. A back light illuminates the display and the keypad
for nighttime use.
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