Jackson Labs RSR GNSS Transcoder, Руководство пользователя

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RSR GNSS Transcoder™ User Manual
4.11.5 INTGPS:GPGGA
This command instructs the RSR GNSS Transcoder™ to send the NMEA standard string $GPGGA
every N seconds, with N in the interval [0,255]. The command is disabled until the internal GNSS
receiver achieves a first fix.
This command has the following format:
INTGPS:GPGGA <int> [0,255]
GPGGA shows height in MSL Meters, this is different from traditional GPS receivers that display
height in GPS Meters. The difference between MSL and GPS height can be significant, 35m or more
are common. Please note that the simulation height is specified in GPS height above elipsoid, so the
height returned by this NMEA message will vary from the simulated height by the GPS to MSL
height difference at the particular location that is being simulated.
4.11.6 INTGPS:GPRMC
This command instructs the RSR GNSS Transcoder™ to send the NMEA standard string $GPRMC
every N seconds, with N in the interval [0,255]. The command is disabled until the internal GNSS
receiver achieves a first fix.
This command has the following format:
INTGPS:GPRMC <int> [0,255]
4.11.7 INTGPS:GPGSV
This command instructs the RSR GNSS Transcoder™ to send the NMEA standard string $GPGSV
every N seconds,
with N in the interval [0,255]. The command is disabled until the internal GPS receiver achieves a
first fix.
INTGPS:GPGSV <int> [0,255]
4.11.8 INTGPS:XYZSPeed
This command is a 3D velocity vector output command. Enabling this command will output a 3
dimensional velocity vector indicating the unit’s speed in centimeters per second in the ECEF
coordinate system.
X, Y, and Z speed are individually given, and are independent of each other. An accuracy estimate in
centimeters per second is also given. The velocity data is time-stamped using the time-of-week with
a resolution of milliseconds.
Additionally, the number of accrued Leapseconds is indicated in this message, which allows proper
calculation of GPS time from UTC time as indicated by other messages, as well as proper handling
of Leapsecond events.
Use the following format to generate the velocity vector every N seconds, with N in the interval
[0,255]:
INTGPS:XYZSPeed <int> [0,255]