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Sierra Wireless 597 Modem User Manual

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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.

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