Справочник Пользователя для Trimble Outdoors SPSX51
A NMEA-0183 Output
118 SPSx51 Modular GPS Receivers User Guide
NMEA-0183 message overview
When NMEA-0183 output is enabled, a subset of NMEA-0183 messages can be output
to external instruments and equipment connected to the receiver serial ports. These
NMEA-0183 messages let external devices use selected data collected or computed by
the GPS receiver.
to external instruments and equipment connected to the receiver serial ports. These
NMEA-0183 messages let external devices use selected data collected or computed by
the GPS receiver.
All messages conform to the NMEA-0183 version 3.01 format. All begin with $ and end
with a carriage return and a line feed. Data fields follow comma (,) delimiters and are
variable in length. Null fields still follow comma (,) delimiters but contain no
information.
with a carriage return and a line feed. Data fields follow comma (,) delimiters and are
variable in length. Null fields still follow comma (,) delimiters but contain no
information.
An asterisk (
*)
delimiter and checksum value follow the last field of data contained in
an NMEA-0183 message. The checksum is the 8-bit exclusive of all characters in the
message, including the commas between fields, but not including the $ and asterisk
delimiters. The hexadecimal result is converted to two ASCII characters (0–9, A–F).
The most significant character appears first.
message, including the commas between fields, but not including the $ and asterisk
delimiters. The hexadecimal result is converted to two ASCII characters (0–9, A–F).
The most significant character appears first.
The following table summarizes the set of NMEA messages supported by the receiver,
and shows the page that contains detailed information about each message.
and shows the page that contains detailed information about each message.
To enable or disable the output of individual NMEA messages, do one of the following:
•
Create an application file in the GPS Configurator software that contains NMEA
output settings and then send the file to the receiver.
output settings and then send the file to the receiver.
•
Add NMEA outputs in the Serial outputs tab of the GPS Configurator software
and then apply the settings. (You cannot use the GPS Configuration software to
load application files to the SPSx51 Modular GPS receivers.)
and then apply the settings. (You cannot use the GPS Configuration software to
load application files to the SPSx51 Modular GPS receivers.)
•
For SPSx51 Modular GPS receivers, set up the NMEA output using the keypad
and display or a web browser.
and display or a web browser.
Message
Function
Page
Time, position, and fix related data
GPS DOP and active satellites
Position error statistics
Number of SVs in view, PRN, elevation, azimuth, and SNR
Heading from True North
Time, yaw, tilt, range, mode, PDOP, and number of SVs for
Moving Baseline RTK
Moving Baseline RTK
PTNL, BPQ
Base station position and position quality indicator
Time, position, position type and DOP values
Local coordinate position output
Time, locator vector, type and DOP values
Heading Information
Position, Velocity, and Time
Rate of turn
Actual track made good and speed over ground
UTC day, month, and year, and local time zone offset