EndRun Sonoma N12, Руководство пользователя

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S o n o m a U s e r M a n u a l 76
C H A P T E R N I N E
77 S o n o m a U s e r M a n u a l
C O N T R O L A N D S T A T U S C O M M A N D S
gpsrefpos
This command displays the current GPS Subsystem reference position. The source of the position,
which is one of UNK (unknown), DYN (dynamic), USR (user entered) or AVG (24 hour average of
GPS fixes) is displayed first. The WGS-84 latitude and longitude in degrees, minutes, seconds format
and the height above the WGS-84 reference ellipsoid in meters follow.
Command:
gpsrefpos
Sonoma reply:
CURRENT REFERENCE POSITION = AVG N38d26m36.11s W122d42m56.50s +00032.5 meters
gpsstat
This command allows you to query the status of the GPS Subsystem. During normal operation, the
NTP daemon polls the GPS Subsystem every 16 seconds. The results of this poll are used to steer the
system clock and are saved to a log file. This command parses and formats the data contained therein
and prints this fixed-length string having these fields:
LKSTAT TFOM = ? YEAR DOY HH:MM:SS LS LF S NN EFCDAC C/No FLTS
or
LKSTAT TFOM = ? YEAR DOY HH:MM:SS LS LF S NN AGC EFCDAC C/No FLTR FLTS
Where:
LKSTAT is the tracking status of the GPS Subsystem, either LOCKED or NOTLKD.
TFOM = ? is a value between 3 and 9 and indicates clock accuracy.
A detailed explanation of TFOM is in
Appendix A - TFOM
.
YEAR is the year of the UTC timestamp of the most recent update.
DOY is the day-of-year of the UTC timestamp of the most recent update.
HH:MM:SS is the hour, minute and second of the UTC timestamp of the most recent update.
LS is the current number of leap seconds difference between the UTC and GPS timescales
(18 at the time of this writing).
LF is the future (at the next UTC midnight) number of leap seconds difference between the
UTC and GPS timescales (18 at the time of this writing).
S is the Signal Processor State, one of 0 (Acquiring), 1 (GPS Locking), 2 (GPS Locked), 9
(Warming Up).
NN is the number of GPS satellites being tracked, 0 to 12.
AGC is the current receiver Automatic Gain Control DAC word, 0 to 255. This field is
not shown in units shipped before June 2017.