Glossary
180
ESD
ElectroStatic Discharge
G
G/T
A figure of merit of an antenna and low noise amplifier
combination expressed in dB. "G" is the net gain of the system
and "T" is the noise temperature of the system. The higher the
number, the better the system.
GPIO
General Purpose Input/Output
GPS
Global Positioning System. A system of satellites, computers, and
receivers that is able to determine the latitude and longitude of a
receiver on Earth by calculating the time difference for signals
from different satellites to reach the receiver.
H
HF
High Frequency. The frequency band between 3 and 30 MHz.
Used for medium and long range terrestrial radio communication.
HPA
High Power Amplifier
I
I/O
Input/Output
IP
Internet Protocol. The method or protocol by which data is sent
from one computer to another on the Internet.
ISDN
Integrated Services Digital Network. A circuit-switched telephone
network system, designed to allow digital transmission of voice
and data over ordinary telephone copper wires, resulting in
higher quality and speed than are available with analog.
Содержание FB250
Страница 13: ...Table of contents xii ...
Страница 77: ...Chapter 3 Connecting power 64 Connecting power ...
Страница 105: ...Chapter 5 Starting up the system 92 Operating the system ...
Страница 129: ...Chapter 6 Service and repair 116 Replacing modules in 34 3052B antenna ...
Страница 139: ...Chapter 7 Troubleshooting 126 Logging of events ...
Страница 147: ...Appendix B Technical specifications 134 FB500 antenna B 2 3 Antenna outline dimensions FB500 in 26 66 cm dome ...
Страница 148: ...Appendix B Technical specifications FB500 antenna 135 BBBB Technical specifications FB500 in 35 89 cm dome ...
Страница 154: ...Appendix B Technical specifications FB250 antenna 141 BBBB Technical specifications FB250 in 19 48 cm dome ...
Страница 165: ...Appendix B Technical specifications 152 TracPhone terminal ...
Страница 197: ...Glossary 184 ...