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4 GPS
30 CONTENTS TH-D72A/E
This function enables exporting the NMEA 0183 raw data from the internal GPS unit via the PC
(USB) connector.
Searching the web reveals many applications that utilize the raw data. Some convert the raw data
into Google Earth format and others display the satellite information or save the trajectory.
Or, you can view the raw data using HyperTerminal or some other terminal software.
Figure 4-13 Displaying the Raw Data
TH-D72A/E can generate the following seven types of NMEA data.
• $GPGGA, $GPGLL, $GPGSA, $GPGSV, $GPRMC, $GPVTG, $GPZDA
Use Menu 211(GPS - Setup - Sentence) to select the type of NMEA sentence that is output from the
internal GPS unit to a PC.
Figure 4-14 Menu 211 (Sentence)
Press the [MHz] key to toggle between adding and deleting the sentence. The “ ” mark appears to
the left of the added sentence. “$GPGGA” and “$GPRMC” cannot be deleted, as they are necessary
for BEACON transmission and satellite information displays.
To display the position information display, $GPGSV or $GPGSA should be selected.
4.3.4 NMEA Sentence Output