Specifications

AIRMAR

PB100 WeatherStation Technical Manual revision 1.007

NMEA 0183 TRANSMITTED SENTENCE

$GPGSA

Summary

NMEA 0183 standard GNSS DOP and Active Satellites.

Syntax

$GPGSA,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,

<12>,<13>,<14>,<15>,<16>,<17>*hh<CR><LF>

Fields

<1>

M = Manual, forced to operate in 2D or 3D mode

A = Automatic, allowed to automatically switch 2D/3D

<2>

1 = Fix not available

2 = 2D fix

3 = 3D fix

<3>-<14>

ID numbers of satellites used in solution

<15>

Positional Dilution of Precision (PDOP). This field is null unless

the GPS has a 3D fix.

<16>

Horizontal Dilution of Precision (HDOP). This field is null unless

the GPS has either a 2D fix or a 3D fix.

<17>

Vertical Dilution of Precision (VDOP). This field is null unless

the GPS has a 3D fix.

Default State

Disabled. Once per second when enabled.

Notes

This sentence is not available in the LB100.

This sentence may be enabled via the $PAMTC,EN,GSA command. However, if

the WeatherStation receives a VTG or RMC sentence from an external GPS, then

this sentence shall not be transmitted.