Tyco Electronics MM102014V1 - Manual (Page 16)

MM102014V1, Rev. G
4 BASIC OPERATION
4.1 FRONT PANEL COMPONENTS OVERVIEW
The front panel of the dash-mounted M-803 mobile radio is identical to the front panel of the CH-103
control head utilized in remote/trunk-mounted M-803 and V-TAC radio installations. It includes a
19-character 2-line display, menu and select buttons for menu navigation, an emergency button, three pre-
set buttons, a power button/rotary volume dial, a microphone connector. See Figure 4-1. Table 4-1 lists all
front panel controls and their functions.
Figure 4-1: Front Panel Components
The buttons on the front panel are backlit for operation in a low ambient light level, such as nighttime
operation. Some buttons also flash to provide feedback of various operating conditions.
In addition, the front panel contains a light level sensor that samples ambient light levels for automatic
display and button backlight brightness adjustments. Meaning it automatically brightens the display and
backlights when higher external light levels exist and automatically dims the display and backlights
during lower external light levels.
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