Jackson Labs Mini-JLT GNSS, Руководство пользователя

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Mini-JLT GNSS™
User Manual
VALID : a survey has been achieved successfully and the GNSS receiver is now using this Hold
position as reference.
INVALID : no survey are in progress or have been achieved since the last power cycle.
When in ACTIVE or VALID state, this query will also display the duration, the Hold position in
ECEF coordinates and the position variance .
3.3.27 GPS:INITial:DATE <yyyy,mm,dd>
Firmware revision 2.32 and later adds support for manually setting the time and date in the RTC in
the event that no GNSS signals are available. This command allows setting the internal RTC DATE
manually when operating the unit in GNSS denied environments. This command is compatible to the
PTIME:OUT ON command described in section 3.5.5. to allow automatic time and date
synchronization of two units to each other. The internal RTC is driven by the highly stable ovenized
oscillator 10MHz signal, and thus has very high accuracy.
3.3.28 GPS:INITial:TIME <hour,min,sec>
Firmware revision 2.32 and later adds support for manually setting the time and date in the RTC in
the event that no GPS signals are available. This command allows setting the internal RTC TIME
manually when operating the unit in GPS denied environments. This command is compatible to the
PTIME:OUT ON command described in section 3.5.5. to allow automatic time and date
synchronization of two units to each other. The internal RTC is driven by the highly stable ovenized
oscillator 10MHz signal, and thus has very high accuracy.
3.3.29 GPS:SYSTem:SELect [GPS | SBAS | QZSS | GAL | BD ^
GLO]
This command selects the GNSS systems that are enabled in the GNSS receiver and are used to
generated the timing and positioning information for the NMEA data, and to generate the 1PPS
reference for the GNSDO. The command is followed by a list of the shortened names of the GNSS
systems to enable. The shortened names of supported GNSS system include GPS, SBAS, QZSS, BD
(BeiDou), GAL (Galileo) and GLO (GLONASS). Please see Section
2.3 for restrictions on the
concurrent GNSS systems that can be enabled. Invalid combinations of GNSS systems will result in
a Command Error response and no change to the configuration.
The following command will enable GPS, SBAS, Galileo and GLONASS:
GPS:SYST:SEL GPS SBAS GAL GLO
The following command will query the currently enabled GNSS systems:
GPS:SYST:SEL?
The Mini-JLT GNSS™ will respond to the query with the list of enabled GNSS systems like:
GPS SBAS GAL GLO