Gps Dop And Active Satellites - NorthStar 2505 Installation Manual

GPS DOP and active
satellites
HEADER
$GPGSA,a,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx.x,xx.x,xx.x*hh<CR><LF>
1. PRN numbers of satellites used in solution (null for unused fields).
2. Mode:
3. Mode:
2505 INSTALLATION MANUAL, Revision A
Operating mode, satellites used for navigation and DOP values
from GPS sensor.
CONTENTS OF DATA FIELDS
1 = fix not available
2 = 2-D
3 = 3-D
M = manual, forced to operate in 2-D or 3-D mode
A = automatic, allowed to automatically switch 2-D/3-D
Example:
$GPGSA,A,3,14,22,03,09,08,29,17,,,,,,2.7,2.2,1.6*3A<CR><LF>
Mode:
SVs Used:
PDOP:
HDOP:
VDOP:
Appendix C NMEA output protocol
VDOP
HDOP
PDOP
1
PRNs of SVs used
2
mode
3
mode
automatic/3-D
PRNs 14, 22, 03, 09, 08, 29, 17
2.7
2.2
1.6
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