Technical Manual
Table Of Contents
- Front Cover
- Foreword
- Table of Contents
- Safety
- ASTRO Digital XTS 3000 Model Chart (“A” Models)
- Portable Radio Model Numbering System
- ASTRO Digital XTS 3000 Model Chart (”B” Models)
- ASTRO Digital XTS 3000 R (Ruggedized) Model Chart
- ASTRO Digital XTS 3000 R (Ruggedized) Yellow Model Chart
- Model History Tables
- Glossary
- Introduction
- General Overview of an ASTRO Digital XTS 3000 Radio
- Radio Power
- VHF/UHF Transceiver Board Detailed Theory of Operation
- 800MHz Transceiver Board Detailed Theory of Operation
ix
OPERATIONAL CAUTIONS
ANTENNAS
BATTERIES
All batteries can cause property damage and/or bodily injury such as burns if a conductive material such
as jewelry, keys, or beaded chains touch exposed terminals. The
conductive material may complete an
electrical circuit (short circuit) and become quite hot. Exercise care in handling any charged battery,
particularly when placing it inside a pocket, purse, or other container with metal objects.
INTRINSICALLY SAFE RADIO INFORMATION
FMRC Approved Equipment
Anyone intending to use a radio in a location where hazardous concentrations of flammable material exist
(hazardous atmosphere) is advised to become familiar with the subject of intrinsic safety and with the
National Electric Code NFPA 70 (National Fire Protection Association) Article 500 (hazardous [classified]
locations).
An Approval Guide, issued by Factory Mutual Research Corporation (FMRC), lists manufacturers and the
products approved by FMRC for use in such locations. FMRC has also issued a voluntary approval
standard for repair service (“Class Number 3605”).
FMRC Approval labels are attached to the radio to identify the unit as being FM Approved for specified
hazardous atmospheres. This label specifies the hazardous Class/Division/Group along with the part
number of the battery that must be used. Depending on the design of the portable unit, this FM label can
be found on the back or the bottom of the radio housing. The FM Approval mark is shown below:
WARNINGS
Do not use any portable radio that has a damaged antenna.
If a damaged antenna
comes into contact with your skin, a minor burn can result.
•
Do not operate radio communications equipment in a hazardous atmosphere unless it
is a type especially qualified for such use (e.g., FMRC Approved). An explosion or fire
may result.
•
Do not operate an FMRC Approved Product in a hazardous atmosphere if it has been
physically damaged (e.g., cracked housing). An explosion or fire may result.
•
Do not replace or charge batteries in a hazardous atmosphere. Contact sparking may
occur while installing or removing batteries and cause an explosion or fire.
!
C a u t i o n
FM
APPROVED
!
W A R N I N G
!