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Sierra Wireless 20070914 Cell Phone User Manual

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Global Positioning System (GPS)

Rev 3.0B Feb.08 85

ExamplesoftrackingapplicationsusingRAP:

• Air‐Trak

• TrackStar

• CompassCom

• ZollData

• HTE

• Spillman

• andothers...

National Marine Electronics Association (NMEA)

NationalMarineElectronicsAssociation(NMEA)isaprotocol

bywhichmarineinstrumentsandmostGPSreceiverscan

communicatewitheachother.NMEAdefinestheformatof

manydifferentGPSmessage(sentence)types,whichare

intendedforusebynavigationalequipment.

ExampleofatrackingapplicationusingNMEA:

• MicrosoftStreetsandTrips

Tip: For more information on the PinPoint X supported NMEA

message formats, please refer to the Appendix.

Trimble ASCII Interface Protocol (TAIP)

TrimbleASCIIInterfaceProtocol(TAIP)isadigitalcommuni‐

cationinterfacebasedonprintableASCIIcharacters overa

serialdatalink.TAIPwasdesignedspecificallyforvehicle

trackingapplicationsbuthasbecomecommoninanumberof

otherapplications,suchasdataterminalsandportable

computers,becauseofitseaseofuse.

ExampleofatrackingapplicationusingTAIP:

• DeLormeStreetAtlasUSA

Tip: For more information on TAIP message formats, refer to the

Appendix and to the Sierra Wireless MP 3G Modem TAIP Reference.

Datum

TheGPSdatumisthemethodofascertainingthepositionof

theGPSdeviceusingaspecificreferencepointlocation.The

datumusedcaninfluencetheaccuracyoftheGPSpositioning.

Inadditiontodifferentreportingprotocols,thePinPointX

supportsthemostwidelyusedGPSdatum:

• WGS84

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