dormant

The network switches the data connection into dormant mode if there is no traffic on the connection for some time. When you resume data traffic, the high-speed data connection becomes active.

The data connection may also go dormant while a GPS fix is being acquired.

ESN

Electronic Serial Number—The unique serial number assigned to the card for cellular network use. Either the ESN or MEID is on the label on the card, and is also displayed in the “Device Info & Diagnostics” window (Windows; page 89) or “About Sprint Device” window (Mac; page 118). See also MEID.

ExpressCard™

Add-in memory and communications cards for portable computers. ExpressCard is a trademark of the PCMCIA.

FCC

Federal Communications Commission—The U.S. federal agency that is responsible for interstate and foreign communications. The FCC regulates commercial and private radio spectrum management, sets rates for communications services, determines standards for equipment, and controls broadcast licensing. Consult www.fcc.gov.

firmware

Software stored in ROM or EEPROM memory; essential programs that remain even when the system is turned off. Firmware is easier to change than hardware but more permanent than software stored on disk.

fix

GPS location information obtained from the network.

GPS

Global Positioning System—A system that uses a series of 24 geosynchronous satellites to provide location data.

HEPE

Horizontal Estimated Position Error—Relates to GPS accuracy.

IS

Interim Standard—After receiving industry consensus, the TIA forwards the standard to ANSI for approval.

172

Glossary

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Sprint Nextel 597E manual Horizontal Estimated Position Error-Relates to GPS accuracy, 172