Introducing the USB 598 modem
Document 2131141. Rev 1.0 Feb.09 11
CDMA 3G services
Themodemoperatesoveratypeofwirelessnetworkcalled
CDMA (CodeDivisionMultipleAccess).
CDMA 3Gtechnologyprovidesavarietyofconnectivity
features,dependingonyourserviceproviderandaccount:
• 1x‐EVDORev.AsupportsInternetconnectionswithdata
ratesupto3.1 Mbps(downlinkfromthenetwork)and
1.8 Mbps(uplinkto
thenetwork).Averagedataratesare
450‐800 Kbps(downlinkfromthenetwork)and
300‐400 Kbps(uplinktothenetwork).Actualspeed
dependsonthenetworkconditions.
• 1x‐EVDORev.0supportsInternetconnectionswithdata
ratesupto2.4 Mbps(downlinkfromthenetwork)and
153 Kbps(uplinktothe network).
Averagedataratesare
400‐700 Kbps(downlinkfromthenetwork)and
40‐80 Kbps(uplinktothenetwork).Actualspeeddepends
onthenetworkconditions.
• 1XsupportsInternetconnectionswithdataratesupto
153 Kbps.Actualspeeddependsonthenetworkcondi‐
tions.
Oncetheconnectionisestablished,youcanopen
yourbrowser
andconnecttoanywebsitethatisaccessiblethroughthe
Internet,oraccessotherInternetservices(suchase‐mail).
Theconnectionis“active”whendatatransmissionis
occurring.Ifdatatransmissionstopsforaperiodoftime
(determinedbythenetwork),theconnectionbecomes
dormant.
• Circuitswitched
(dial‐up)data,usingtheearlierCDMA
IS‐95specification,supportsdataconnectionstoanydial‐
inserviceatratesupto14.4 Kbps.
• QNC (QuickNetConnect)providesasimplifiedwayto
dialintoanInternetconnection(usingcircuitswitched
data)where3G(1xEV‐DOor1X)high‐speedpacket
service
isnotavailable.
• SMS (ShortMessageService)allowsyoutosendand
receiveshorttextmessagesusingthemodem.
Additional features of the modem
BeyondthefeaturesoftheCDMAnetwork,themodem
providesadditionalsoftwarefeatures:
• PINsecuritycodetoprotect yourmodemandaccount
fromunauthorizeduse.
• AwizardtoassistwithactivatingyourCDMAaccount.
