Nmeapnctgst (Acsii); Nmeapnctmde (Ascii); Table 50: Pnctgst Message Output Format; Table 51: Pnctmde Message Output Format - Oceaneering C-NavX1 User Manual

11.4.14

NMEAPNCTGST (ACSII)

This message satisf ies the UKOOA compliance requirements by starting with the standard NMEA GST message
and scaling all error statistics by 1.96, and by adding a value f or the F-Test of Unit Variance.

Table 50: PNCTGST Message Output Format

Output $PNCTGST,time,rms,majoraxis,minoraxis,orientation,lateer,loner,alterr,f isher*chec
Format: ksum
Field# Field Name
F1 time
F2 rms
F3 Majoraxis*
F4 Minoraxis*
F5 orientation
F6 Laterr*
F7 Loner*
F8 Alter*
F9 f isher
F10
*Indicates the result is scaled by 1.96. This output stream reports pseudo -range noise statistic inf ormation and
is in compliance with NMEA-0183 Standards version 3.0.
Examples:
$GNGST,192518.00,0.3762,0.1054,0.0953,074.8583, 0.0960,0.1048, 0.2168*7A
$PNCTGST,193028.00,0.2993, 0.1722,0.1448, 084. 7181,0.1451,0. 1720,0.3391,1*65
11.4.15

NMEAPNCTMDE (ASCII)

This output stream reports the Marginally Detectable Error (MDE) generated by the receiver as part of the self -
monitoring duties perf ormed to support Receiver Autonomous Integrity Monitoring (RAIM).
proprietary NMEA type message, and it conf orms to the header, checksum and electrical characteristics of a
standard NMEA string, but is not recognized by the NMEA governing body as an of f icially sanctioned message.

Table 51: PNCTMDE Message Output Format

Output
$PNCTMDE,time,svid,Type,bias,mde,laterr,longerr,alterr,*checksum
Format:
Field# Field Name
F1 time
F2 svid
F3 Type
CNAV-MAN-061
Revision B
C-NavX1 GNSS Receiver User Manual
Description
UTC time f or position f ix in hours, minutes, seconds
(hhmmss.ss) (000000.00 to 235959.99)
Total RMS standard deviation of ranges inputs to the navigation
solution
Standard deviation of semi-major axis of error ellipse in meters
Standard deviation of semi-minor axis of error ellipse in meters
Orientation of semi-major axis of error ellipse in true north degrees
(0 to 180°)
Standard deviation of latitude error in meters
Standard deviation of longitude error in meters
Standard deviation of altitude error in meters
Fisher Test Result
Checksum
Description
UTC time f or position f ix in hours, minutes, seconds
(hhmmss.ss) (000000.00 to 235959.99)
The GNSS svid
Measurement type: 0 = CA, 1 = P1, 2 = L1, 3 = P2, 4 = L2, 5 =
RCCode, 6 = RC PHASE
DOC-TEM-28-NUM Rev A Uncontrolled copy when printed
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