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9
Working with GSM/HSDPA/UMTS/GPRS/EDGE
Overview
The Dolphin 9700 terminal can be configured with an integrated, embedded GSM/UMTS/GPRS/EDGE
penta-band radio module for WWAN communication.
GSM
Short for Global System for Mobile communications, GSM is an open, non-proprietary wireless
WAN system that is constantly evolving and growing.
HSDPA
Short for High-Speed Download Packet Access, HSDPA is a non-voice value added service that
allows packet-switched data to be instantly sent and received across mobile telephone networks.
UMTS
Short for Universal Mobile Telecommunications System, UMTS is a non-voice value added service
that allows packet-switched data to be instantly sent and received across mobile telephone
networks.
GPRS
Short for General Packet Radio Service, GPRS is a non-voice value added service that allows
packet-switched data to be instantly sent and received across mobile telephone networks.
EDGE
E-GPRS is a non-voice value added service that allows packet-switched data to be instantly sent
and received across mobile telephone networks at a higher data rate than standard GPRS.
Requirements
Using GSM/HSDPA/UMTS/GPRS/EDGE requires a:
• Network subscription to a GSM/HSDPA/UMTS/GPRS/EDGE network (you need to know what service
providers are in your geographic area), and
• An installed SIM card that has been activated by the network service provider (see
Installation
on page 9-2).
Penta Band Antenna
The GSM radio features an internal antenna that is optimized for power output and receiver sensitivity.
This is an omni-directional antenna.
For the HC-25 radio, there is a unified penta-band antenna that supports 850/900/1800/1900 (GSM/
GPRS/EDGE) and 850/1900/2100 (HSDPA/UMTS) MHz for obtaining GSM service worldwide.
Signal Strength
The signal strength of the GSM connection is indicated by the number of bars that appear in the signal
strength icon in the Navigation bar at the top of the window.
Icon
Indicates...
The signal strength of the radio connection.
The signal strength of the phone (voice) connection; see
The signal strength of the data connection; see
Voice Communication
Data Communication
on page 9-8.
SIM Card
on page 9-4.
9 - 1
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