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September 26, 2003
6881096C77-O
1-2
Introduction: Control Head Features
1.2
Control Head Features
The table below outlines the basic features of the five control heads covered in this manual.
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.
Table 1-1. ASTRO Digital Spectra/Spectra Plus Basic Features
Feature
W3
W4
W5
W7
W9
Display
2 line/
14 characters
Liquid-Crystal
Display (LCD)
with 8 Status
Annunciators
1 line/
8 characters
Vacuum
Fluorescent
Display
1 line/
8 characters
Vacuum
Fluorescent
Display
1 line/
8 characters
Vacuum
Fluorescent
Display
1 line/
11 characters
Vacuum
Fluorescent
Display
Mode &
Volume
Controls
Rocker Switches
Rotary Mode &
Volume Controls
Rocker Switch
Mode & Volume
Controls
Rocker Switch
Mode & Volume
Controls
Rocker Switch
Mode & Volume
Controls
Numeric
Keypad
Yes
No
No
Yes
Yes
Channel
Capability
(Digital
Spectra)
255
128
128
255
255
Channel
Capability
(Digital
Spectra Plus)
512
128
128
512
512
Remote Mount
Available
Available
Available
Available
Available
Dash Mount
Available
Available
Available
Available
Not Available
Содержание ASTRO W5
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