Garmin 010-11018-00 GPS 20x Technical Specifications - Page 13

190-00880-00

GPS 20x Technical Specifications

Rev. A

Page 10

3.1.7

Sensor Status Information (PGRMT)

The Garmin Proprietary sentence $PGRMT gives information concerning the status of the GPS sensor. This

sentence is transmitted once per minute regardless of the selected baud rate.

$PGRMT,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>*hh<CR><LF>

<1>

Product, model and software version (variable length field, for example, “GPS 20x VER 2.05”)

<2>

No Effect (This field is not used on this model and is included only for backwards compatibility)

<3>


<4>


<5>


<6>


<7>


<8>


<9>


Section	Page
1 INTRODUCTION	4
1.1 CAUTIONS	4
1.2 LIMITED WARRANTY	5
1.3 OVERVIEW	6
1.4 FEATURES	6
1.5 TECHNICAL SPECIFICATIONS	7
1.5.1 Physical Characteristics	7
1.5.1.1 Size	7
1.5.1.2 Weight	7
1.5.1.3 Color	7
1.5.1.4 Case Material	7
1.5.1.5 Cable Length	7
1.5.2 Electrical Characteristics	7
1.5.2.1 Input Voltage	7
1.5.2.2 Input Current	7
1.5.2.3 GPS Receiver Sensitivity	7
1.5.2.4 Environmental Characteristics	7
1.5.3 GPS Performance	7
1.5.3.1 Receiver	7
1.5.3.2 Acquisition Times	7
1.5.3.3 Update Rate	7
1.5.3.4 Accuracy	8
1.5.4 Interfaces	8
1.5.4.1 GPS 20x Electrical Characteristics	8
1.5.4.2 Garmin Interface and Garmin USB Protocol	8
2 MECHANICAL CHARACTERISTICS	9
3 GPS 20x SOFTWARE INTERFACE	10
3.1 TRANSMITTED NMEA 0183 SENTENCES	10
3.1.1 Sentence Transmission Rate	10
3.1.2 Transmitted Time	11
3.1.3 Global Positioning System Fix Data (GGA)	11
3.1.4 GPS DOP and Active Satellites (GSA)	12
3.1.5 GPS Satellites in View (GSV)	12
3.1.6 Recommended Minimum Specific GPS/TRANSIT Data (RMC)	12
3.1.7 Sensor Status Information (PGRMT)	13
APPENDIX A: EARTH DATUM LIST	14

Garmin 010-11018-00 GPS 20x Technical Specifications - Page 13

Sensor Status Information PGRMT

Page 13 highlights