System Switch scrolls
through the names of
the systems and/or
channels program-
med into the radio,
displaying them on
the Dot Matrix
display.
Two Flex Keys
give you one-touch
access to the menu or
optional features.
Optional keycaps are
available to identify
the functions of
pre-programmed
buttons, including
Scan Add/ Delete,
Public Address,
Home, Private,
External Alarm, and
display brightness.
Front-Mounted
Microphone
Connector provides
easy access to the
microphone and
programming
capabilities.
System Keypad
10-watt external
speaker must be used
with the System
model.
Figure 2 - MDX System Radio8-Character
Alphanumeric Dot
Matrix LED
allows you to identify
channel selections by
descriptive names.
Menu options, and status
information are displayed
here.
MENU button allows access
to functions and options,
including scan add/delete for
modifying the radio’s scan
list and alarm on/off for the
external alarm option that
uses your horn or head lights
to signal an incoming call.
Emergency ID/ Alarm
(optional)
sends an emergency alert and
identifying code to the
dispatcher. If no emergency
function is required, this can
be programmed as a
"HOME" switch.
PWR
Volum e
Scan Button
CONTROLS, INDICATORS, AND DISPLAYSChannel/SEL
Ramp
10