HARRIS CORPORATION M803M Manuel D’Utilisation

Controls and Indicators—CHAPTER 3

Software Version OTP 5.07

M-803 Operator Manual     21

Front Panel Components

The front panel of your M-803 (or CH-103) includes
the Power Button/Speaker Volume Dial, the Micro-
phone/Speaker I/O Port, a 5-key “soft-button” keypad
for making menu selections, a 19-character vacuum
fluorescent Display Panel, 3 Mode Selector buttons, an
Emergency Button and an Ambient Light sensor.

Your Push-to-Talk button is located on your hand-held
detachable microphone or hands-free speaker box (not
shown here).

Because an M-803 mobile radio can support as many
as five Control Heads, your installation may or may
not include the hardware “box” behind the front panel.
The figure below shows the complete dash-mounted
configuration of an M-803 mobile radio complete with
front control panel.

Peripheral equipment such as a mobile computer or
data terminal connect to the M-803 through the rear-
panel peripheral interface.

Figure 4 Front Panel Components

Dash-Mount M-803 Standalone Configuration

Up to five Control Head
Units (CHU) can be
supported by a  single
Mobile Radio Unit (MRU).
The most typical multiple
CHU configuration would
be a large fire truck or
other vehicle with a dash-
or trunk-mounted M-803
and auxiliary control heads

positioned elsewhere on
the vehicle.