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Control Head Features; Control Heads; W3 Control Head; Table 1-1. Astro Digital Spectra/Spectra Plus Basic Features - Motorola ASTRO W3 Service Manual

Control head models
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1-2
1.2

Control Head Features

The table below outlines the basic features of the five control heads covered in this manual.

Table 1-1. ASTRO Digital Spectra/Spectra Plus Basic Features

Feature
W3
Display
2 line/
14 characters
Liquid-Crystal
Display (LCD)
with 8 Status
Annunciators
Mode &
Rocker Switches
Volume
Controls
Numeric
Yes
Keypad
Channel
255
Capability
(Digital
Spectra)
Channel
512
Capability
(Digital
Spectra Plus)
Remote Mount
Available
Dash Mount
Available
1.3

Control Heads

The control heads used with ASTRO Digital Spectra and Digital Spectra Plus radios have
microprocessor circuitry that operates the standard and optional features built into the system. The
control-head design allows for installation in even the smallest of vehicles. The control head may be
field-programmed to add options or alter the information stored in certain areas of its electronic
memory.
The following sections describe the control head used by each of the five models.
1.3.1

W3 Control Head

The W3 Hand-Held Control Head (HHCH) is shown below. THe HHCH has been designed as an
alternative to the standard radio control-head approach. It can emulate most radio control-head
functions, including LCD display, volume control, power On/Off, and mode. The HHCH can either
replace the radio control head or be used in dual-control applications, either in conjunction with a
radio control head or another HHCH.
September 26, 2003
W4
1 line/
1 line/
8 characters
8 characters
Vacuum
Vacuum
Fluorescent
Fluorescent
Display
Display
Rotary Mode &
Rocker Switch
Volume Controls
Mode & Volume
Controls
No
No
128
128
128
128
Available
Available
Available
Available
Introduction: Control Head Features
W5
W7
1 line/
8 characters
Vacuum
Fluorescent
Display
Rocker Switch
Mode & Volume
Controls
Yes
255
512
Available
Available
W9
1 line/
11 characters
Vacuum
Fluorescent
Display
Rocker Switch
Mode & Volume
Controls
Yes
255
512
Available
Not Available
6881096C77-O

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