Campbell Garmin 16-HVS Spezifikationen PDF herunterladen (Seite 18)

Appendix A. Changing GPS16X-HVS Settings

TABLE A-1. SC110’s DCE Cable Wiring

Wire Color of

SC110’s DCE Cable

Wire Color of

GPS16X-HVS

Power

Supply

Brown Blue N/A

White White N/A

Yellow Shield N/A

N/A Red +12 V

N/A Black Ground

N/A Yellow Ground

A.2 NMEA Commands for System Setup

Received NMEA strings are commands to the GPS16X-HVS which change

some operating parameter. Null fields in the configuration sentence indicate no

change. All sentences are terminated with the carriage return and line feed

characters (CRLF). The CRLF can occur anywhere in the string. The *hh

indicates a checksum which is not required.

TABLE A-2. PGRMC Setup Sentence

$PGRMC,1,2,3,4,5,6,7,8,9,10,11,12,13,14*hhCRLF

1 Fix mode, A = Automatic, 2 = 2D, 3 = 3D

2 Altitude above or below sea level

3 Earth Datum

4 User Earth datum semi-major axis

5 User Earth datum inverse flattening factor

6 User Earth datum delta x earth centered coordinate

7 User Earth datum delta y earth centered coordinate

8 User Earth datum delta z earth centered coordinate

9 differential mode, A = automatic, D = differential only

10 NMEA 0183 baud rate, 3=4800, 4=9600, 5=19200, 8=38400

Velocity filter, 0 = no filter, 1 = Automatic filter, 2-255 = filter

time constant

12 PPS mode, 1 = no pps, 2 = 1 Hz

PPS pulse length, 0-48 = (n+1)*20 ms. Example: n=4 corresponds

to a 100 ms wide pulse width

14 Dead reckoning valid time (1-30 seconds)

PGRMC Notes: All configuration changes take effect after receipt of a valid

value except baud rate and PPS mode, which take effect on the next power

cycle or an external reset event.

A-2

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Campbell Garmin 16-HVS Spezifikationen Seite 18