Sailor 500 FleetBroadband, Installation Manual, Page: 147 / 154

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Glossary
DDDD
Glos
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y
Glossary
D
A
ATB Antenna Tracking Board
AWG American Wire Gauge. A means of specifying wire diameters.
B
BGAN Broadband Global Area Network. A mobile satellite service that
offers high-speed data up to 492 kbps and voice telephony. BGAN
enables users to access e-mail, corporate networks and the
Internet, transfer files and make telephone calls.
D
DTMF Dual Tone Multi Frequency. The keypad signaling technology that
generates two distinct tones when each key is pressed. This
system allows navigation of voice menus and other advanced
calling services. All wireless phones use DTMF dialing.
E
EIRP Effective Isotropically-Radiated Power. The amount of power that
would have to be emitted by an isotropic antenna (that evenly
distributes power in all directions) to produce the peak power
density observed in the direction of maximum antenna gain.
ESD ElectroStatic Discharge
G
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.