Geographic Tracker 

Details

GPS Receiver Support

• Garmin
• NMEA 0183
• Trimble TSIP
• Trimble TAIP

• GGA - GPS fix data
  
• GLL - geographic position
  
• GSA - DOP and active satellites
  
• GSV - satellites in view
  
• RMA - recommended minimum specific Loran-C data
  
• RMC - recommended minimum specific GPS/Transit data
  
• STN - multiple data ID
  
• VTG - track made good and ground speed
  
• ZDA - time and date
  
• DPT - depth
  
• DBT - depth below transducer

• 0x41 - GPS time
  
• 0x42 - single precision XYZ
  
• 0x43 - velocity, XYZ
  
• 0x44 - satellite selection
  
• 0x45 - software version
  
• 0x46 - health
  
• 0x47 - signal levels
  
• 0x4A - single precision latitude/longitude/altitude
  
• 0x4B - additional status
  
• 0x56 - velocity east/north/up
  
• 0x5C - satellite tracking status
  
• 0x6D - all in view satellite selection
  
• 0x83 - double precision XYZ
  
• 0x84 - double precision latitude/longitude/altitude
  

• LN - position
  
• ST - status
  
• TM - time
  

A destination application may set up DDE advises/requests directly to the Geographic Tracker. Supported DDE advise/request items include:

• Latitude - the current latitude value
• Longitude - the current longitude value
• Eheight - the current ellipsoidal height value
• Gheight - the current geoid height value
• Speed - the current speed
• Heading - the current heading
• PDOP - the current PDOP value
• Time - the current UTC or Local time
• Depth - the current water depth in meters. This variable is only output if the NMEA 0183 message type is selected and a serial port multiplexor is used to interface to output from a depth sounder.

Other applications can control the Geographic Tracker application by sending DDE execute commands directly to the Geographic Tracker. This capability affords a high level of customization of the integration between a destination application and the Geographic Tracker. Supported DDE Execute commands include:

• Off - turns GPS communications off.
• Live - turns GPS communications on in Live mode.
• Play "file" - turns GPS communications on in Simulated GPS Data mode. File must specify the fully qualified path name of a valid GPS simulation file.
• Pause - pauses the playing of a GPS simulation file.
• Forward - resumes the playing of a GPS simulation file.
• Exit - terminates the Geographic Tracker application.