Veripos LD6 Operation Manual page 82

Procedure Title: LD6 Operations Manual (B Variant)
File Ref.: AB-V-MA-00589
NMEA ZDA Sentence
The NMEA ZDA sentence provides time and time zone information.
Structure and Example:
$GPZDA,hhmmss.ss,dd,mm,yyyy,xx,yy*hh<CR><LF>
$GPZDA,201530.00,04,07,2002,00,00*6E
ZDA sentence defined:
ZDA = Time & Date
hhmmss.ss
dd,mm,yyy
xx
yy
*hh<CR><LF>
NMEA GST Sentence
The NMEA GST sentence provides error statistics of the position fix. These statistics follow
from the position calculation process.
Structure and Example:
$GPGST,hhmmss.ss,a.a,b.b,c.c,d.d,e.e,f.f,g.g*hh<CR><LF>
$GPGST,024603.00,3.2,6.6,4.7,47.3,5.8,5.6,22.0*58
GST sentence defined:
GST = GNSS Pseudo-range Error Statistics
hhmmss.ss
a.a
b.b
c.c
d.d
e.e
f.f
g.g
*hh<CR><LF>
Rev No: A4
UTC time in hours, minutes, seconds of the GPS position
Day,Month,Year (UTC)
local zone hours (00 to +/-13 hrs)
local zone minutes (00 to 59)
checksum, carriage return and line feed
UTC time in hours, minutes, seconds of the GPS position
RMS value of the standard deviation of the range inputs to
the navigation process. Range inputs include pseudo-ranges
and differential DGNSS corrections
Standard deviation of semi-major axis of error ellipse (meters)
Standard deviation of semi-minor axis of error ellipse (meters)
Orientation of semi-major axis of error ellipse (meters)
Standard deviation of latitude error (meters)
Standard deviation of longitude error (meters)
Standard deviation of altitude error (meters)
checksum, carriage return and line feed
Page 82