User's Manual
Table Of Contents
- About This Manual
- System Description
- Mobile Equipment System
- Repeater System
- Base Station
- System Installation and Checkout
- User Interface
- Acronyms
- Radio Module Specifications
- General Description
- Functional Specifications
- FCC Items
- Channel Definitions
- Power and Distance
- Photographs
- DSSS Channels and Regulations
- EL Antenna Pattern
- AZ Antenna Pattern
Spread Spectrum Radio System User’s Manual 3
March 2001
Mobile Equipment
System
Each truck, shovel, dozer, drill, or other mine equipment in the
network requires the following major components:
• two 2.4-GHz radios
•a Hub
Although not integral to the SSR system, a CAN-based CGC and a
GPS antenna are also essential units of DISPATCH hardware
required on mine equipment.
Radio Module Two radios are needed per mine vehicle or machine so that 360-degree
coverage is obtained without having an antenna mounted above the
equipment. On a haul truck, the radios are typically mounted on the
front left and right deck or handrails.
Each radio module (Figure 2) consists of a molded plastic case
containing the radio electronics and antenna on the same circuit
board. An internal EMI shield protects the electronics.
Figure 2 Radio Module, External View
The overall dimensions of the unit are 22 by 16.5 by 34.3 centimeters
(8.7 by 6.5 by 13.5 inches) and it weighs only 1.6 kilograms
(3.5 pounds).
Each radio connects to the onboard Hub by way of a cable carrying
power and data signals. The cable connects to a single 6-pin connector