Sierra Wireless Compass 597 - Manual (Page 11)

Introducing the Compass 597 USB modem
Document 2130972. Rev 1.0 Apr.08 11
TRU-Locate
With TRU‐Locate™, you can use location‐based services (GPS)
on your Windows computer to query, for example, the
network for information on points of interest (POI) that are
near your current location, or display driving instructions.
Note: TRU-Locate is available on Windows only; subject to feature
availability.
Your modem requires an unobstructed view of GPS satellites
(in the sky), and, like any other GPS device, might not perform
well within forested areas or near tall buildings.
Depending on your account, you may be charged for each
position fix or after you have performed a certain number of
fixes. For details, contact your service provider.
Depending on the mechanism that the network and your
modem use to obtain location information, GPS may not be
supported:
• If Network Mode is set to “EVDO Only”
• If youʹre roaming
• If you do not have network coverage
• Due to other reasons.
If you’re having problems using GPS, contact your service
provider.
CDMA 3G services
The modem operates over a type of wireless network called
CDMA (Code Division Multiple Access).
CDMA 3G technology provides a variety of connectivity
features, depending on your service provider and account:
• 1x‐EVDO Rev. A supports Internet connections with data
rates up to 3.1 Mbps (downlink from the network) and
1.8 Mbps (uplink to the network). Average data rates are
450‐800
Kbps (downlink from the network) and
300‐400 Kbps (uplink to the network). Actual speed
depends on the network conditions.
• 1x‐EVDO Rev. 0 supports Internet connections with data
rates up to 2.4 Mbps (downlink from the network) and
153 Kbps (uplink to the network). Average data rates are
400‐700 Kbps (downlink from the network) and
40‐80 Kbps (uplink to the network). Actual speed depends
on the network conditions.