Programming Manual 8
2. Data Messages
This chapter describes in detail, the GPS data messages supported by the
DGPS MAX, the Mini MAX, the PowerMAX and the Vector receivers. The
following table summarizes the data messages supported by these receivers.
Table 2-1 GPS NMEA Messages
Message Max Rate Description
GPGGA 5 Hz Global Positioning System Fix Data
GPGLL 5 Hz Geographic Position - Latitude/Longitude
GPGSA 1 Hz GNSS (Global Navigation Satellite System) DOP and Active Satellites
GPGST 1 Hz GNSS Pseudorange Error Statistics
GPGSV 1 Hz GNSS Satellites in View
GPRMC 5 Hz Recommended Minimum Specific GNSS Data
GPRRE 1 Hz Range residual message
GPVTG 5Hz Course Over Ground and Ground Speed
GPZDA 5 Hz Time and Date
RD1 1 Hz SBAS diagnostic information (proprietary NMEA message)
$PCSI,1 1 Hz This is a proprietary beacon status message
HDT 10 Hz This message provides the true heading
ROT 10 Hz This message provides rate of turn information
HPR 10 Hz This is a proprietary message with time, true heading, and pitch or roll
GBS 1 Hz This message is used to support Receiver Autonomous Integrity Monitoring
The following subsections provide detailed information relating to the use of
each command.
2.1 GGA Data Message
The GGA message contains detailed GPS position information, and is the
most frequently used NMEA data message. In Table 2-2, the GGA data
message is broken down into its components. This message takes the
following form:
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