Installation guide

AirCard 800 Series Installation Guide
UMTS, EDGE, and GPRS service support” on page 8.)
Otherwise, you can configure Watcher to connect only when
you click the Connect button.
The AirCard modem connection provides access to the
Internet. Once the connection is established, you can open your
browser and connect to any web site available on the Internet,
or access other Internet services (such as e-mail).
HSDPA, UMTS, EDGE, and GPRS service
support
GPRS, EDGE, UMTS, and HSDPA are add-on data services to
GSM mobile phone networks. The maximum theoretical data
speeds when connected on these services are:
• GPRS (General Packet Radio Service)—56 kbps (kilobits
per second)
• EDGE (Enhanced Data GSM Environment)—236 kbps for
the AirCard 875 modem; 216 kbps for the AirCard 850 and
860 modems
• UMTS (Universal Mobile Telecommunications System)—
384 kbps
• HSDPA (High Speed Download Packet Access)—up to
3.6 Mbps (Megabits per second) on the downlink (receive)
for the AirCard 875 modem; 1.8 Mbps for the AirCard 850
and 860 modems.
GPRS and EDGE are 2G (second generation) data services.
UMTS and HSDPA are 3G (third generation) data services.
When establishing a connection, your AirCard modem uses
the fastest available service. If, for example, you are using an
AirCard modem in an area that has GPRS and EDGE service
but not UMTS or HSDPA service, the AirCard modem
connects using EDGE service.
Once the connection is established, you have access to all
Internet services.
Frequency band support
Every GSM network operates on one of these radio frequency
bands, in providing 2G (GPRS or EDGE) service:
• 850 MHz band—(also called the cellular band) used by
some North American service providers
• 900 MHz band—used by some European service
providers
• 1800 MHz band—used by some European and Asian
service providers
2130623 8