C-Nav3050 User Guide

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C-Nav3050 User Guide | Manualzz

C-Nav3050 User Guide

NMEAPNCTGGA (ASCII)

This message reports position and fix related status information. It is a C-Nav proprietary NMEA type message, and it conforms to the header, checksum and electrical characteristics of a standard NMEA string, but is not recognized by the

NMEA governing body as an officially sanctioned message.

Output

Format:

$PNCTGGA,time,lat,N/S,lon,E/W,quality,used,hdop,alt,M,separation,

M,age,Id*checksum

Field #

F1

F2

F3

F4

F5

F6

F7

F8

F9

F10

F11

Field

Name

Description

time

Lat

N/S

Lon

E/W quality

UTC time for position fix in hours, minutes, seconds

(hhmmss.ss) (000000.00 to 235959.99)

Latitude in degrees and decimal minutes

(ddmm.mmmmmm) (0000.000000 to 8959.999999)

Direction of latitude (N = north, S = south)

Longitude in degrees and decimal minutes

(dddmm.mmmmmm) (00000.000000 to 17959.999999)

Direction of longitude (E = east, W = west)

Quality of the position fix (0 to 8)

0 = fix not available, or invalid

1 = GPS SPS Mode, fix valid

2 = Differential GPS SPS Mode, fix valid

3 = GPS PPS Mode, fix valid

4 = Real Time Kinematic, fixed integers

5 = Float RTK, floating integers

6 = estimated (dead reckoning) Mode

7 = Manual input mode

8 = Simulation mode used hdop

Alt

Number of satellites in the position fix, 00 - 12

Horizontal Dilution of Precision, 1 (ideal) to > 20 (poor)

Altitude above mean sea level (geoidal height) in meters, a theoretical value for practical purposes can range from -50 or so for low places on Earth, to very large positive values for the heights.

M Units for altitude (M = meters) separation Geoidal separation: the difference between the WGS-84

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C-Nav3050 User Guide earth ellipsoid surface and mean-sea-level (geoid) surface. “-“ = mean-sea-level surface below WGS-84 earth ellipsoid surface. Note: if no geiod is loaded, geoidal separation is reported as 0.

F12

F13

F14

M age

Id

Units for geoidal separation (M = meters)

Time since last dGPS data was received, in seconds

4-digit integer as denoted as XXYY, where XX is the

satellite beam in use (See Table 54 ), and YY is the GPS

correction signal type being used (See Table 56 )

F15 checksum

Table 53: PNCTGGA Message Output Format

Example:

$PNCTGGA,032215.00,3713.870081,N,12148.058703,W,2,08,1.8,59.608,M,-

33.440,M,8.0,0122*47

Network

Net 1

Net 2

Code

(XX)

00

01

02

03

04

05

06

07

09

Designation

Satellite

ID

Longitude Uplink Site

N/A

4F3

4F2

4F1

3F3

3F4

N/A

402

525

643

678

446

Unknown

98.0W

25E

143.5E

178E

54W

3F1

3F2

564

484

64E

15.5W

N/A N/A Manual

Override

Table 54: Beam Selection ID

Unknown

Laurentides

Burum

Auckland

Santa Paula

Southbury

Perth

Southbury

Please note:

Satellites 609 and 643 have been reassigned to provide improved reception.

Satellite 609 (109°E), which was Net-1, is now Net-2, and satellite 643

(143.5°E), which was Net-2, is now Net-1.

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C-Nav3050 User Guide

System

GPS

GLONASS

5

6

7

8

9-F

0

Signal

ID

0

1

2

3

4

Signal Channel

All Signals

L1 C/A

L1 P(Y)

L1 M

L2 P(Y)

L2C-M

L2C-L

L5-I

L5-Q

Reserved

All Signals

1

2

3

4

5-F

G1 C/A

G1 P

G2 C/A

GLONASS (M) G2 P

Reserved

Table 55: Signal ID

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C-Nav3050 User Guide

ID

(YY)

GPS Correction Signal

00 Non dGPS

01 dGPS, RTCM type 1 (GPS-code); and type 31 (GLONASS

– code) or type 9 (GPS

– code); and type 34 (GLONASS partial correction set – code), Single Freq. and Dual Freq.

02 WAAS/EGNOS, Single Freq. (GPS)

03 WAAS/EGNOS, Dual Freq. (GPS)

04 Reserved

05 Reserved

06

C-Nav

Correction Services (CCS), Single Freq. (no “Tide” Adjustment)

(GPS)

07 Reserved

08 Reserved

09 Reserved

10 dGPS/dGLONASS, RTCM type 1 or 9 and 31 or 34, Dual Freq.

11

C-

Nav Correction Services (CCS), Dual Freq. (no “Tide” Adjustment)

(GPS)

12 Code base Nav, Single Freq. NCT Proprietary Format

13 Code base Nav, Single Freq. RTCM 18/19 (GPS and GLONASS)

14 Code base Nav, Single Freq. RTCM 20/21 (GPS and GLONASS)

15 Code base Nav, Single Freq. CMR (GPS and GLONASS)

16

Code base Nav, Dual Freq. NCT Proprietary Format (GPS and

GLONASS)

17 Code base Nav, Dual Freq. RTCM 18/19 (GPS and GLONASS)

18 Code base Nav, Dual Freq. RTCM 20/21 (GPS and GLONASS)

19 Code base Nav, Dual Freq. CMR (GPS and GLONASS)

20

RTK Mode, NCT Proprietary Format 5e/5c (GPS and GLONASS) or

5b/5c (GPS)

21 RTK Mode, RTCM 18/19 (GPS and GLONASS)

22 RTK Mode, RTCM 20/21 (GPS and GLONASS)

23 RTK Mode, CMR (GPS and GLONASS)

24

C-

Nav Correction Services (CCS), Single Freq., Adjusted for “Tides”

(GPS)

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25

C-Nav Correction Services (CCS), Dual Freq.,

Adjusted for “Tides”

(GPS)

26

RTK Extend Active (C-Nav Correction Services filling in for missing RTK epochs) (GPS)

33 GNSS, Single Freq., no “Tides”

34 GNSS, Dual Freq., no “Tides”

35 GNSS, Single Freq.,

Adjusted for “Tides”

36 GNSS,

Dual Freq., Adjusted for “Tides”

Table 56: Navigation Mode

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