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 9
March 2001
coaxial cables—and the ac-to-dc converter with power line protection
if power is obtained from an ac source rather than the solar panel.
Figure 5 Repeater Hub Environmental Enclosure
A repeater equipped with a solar panel also has backup battery power.
The batteries are installed in a large environmental enclosure. Power
line protection from the solar panel to the Hub in its enclosure is
provided by surge suppressors inside a third enclosure attached to the
enclosure containing the batteries.
Major Circuit Boards
The repeater Hub houses the following major components:
• radio board
The electronics on this board are identical to those on the
mobile system’s radio module. However, this board does not
have an integrated antenna.
• processor board
This is the identical board used in the mobile equipment
system.
• connector board
This board provides the connections between the internal
components and external devices.
Closed Opened