Sierra Wireless EV-DO - Manual (Page 86)

Global Positioning System (GPS)
Rev 3.0B Feb.08 81
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-E 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‐E
supports the most widely used GPS datum:
• WGS84