5.3 Time Code Data Formats
This section describes the different time code data format selections available for use with
VersaSync option cards that accept ASCII data streams as inputs or outputs via their RS-
485 and RS-232 interfaces.
Supported are formats like NMEA, BBC, Spectracom, GSSIP, and Endrun.
5.3.1 NMEA GGA Message
The GGA Format provides essential fix data which includes 3D location and accuracy data.
E x a m p l e m e s s a g e :
$GPGGA,123519.00,4807.038,N,01131.000,E,1,08,,545.4,M,-164.0,M,,*47
NOTE: The GGA format does not support precision timing and 1PPS functionality; the
WebUI may permit the selection of Message or PPS Pin as PPS Source, but the NMEA
GGA Message will not use either. If this data is required for your application, use the ZDA
Message format instead (see "NMEA ZDA Message" on the next page).
Where:
GGA Global Positioning System Fix Data
123519.00 Fix taken at 12:35:19 UTC
4807.038,N Latitude 48 deg 07.038' N
01131.000, E Longitude 11 deg 31.000' E
1 Fix quality:
0 = Invalid
1 = GNSS fix (SPS)
2 = DGPS fix
3 = PPS fix
4 = Real Time Kinematic
6 = estimated (dead reckoning) (2.3 feature)
7 = Manual input mode
8 = Simulation mode
08 Number of satellites being tracked
(empty field) (Field not provided in this setup)
545.4,M Altitude, Meters, above mean sea level (geoid)
VersaSync User Manual 277
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