Spectracom GSG-5 series, User Manual With Scpi Manual

Page: 190 / 378

Provided the option is enabled, you can access and modify this file via the StudioView File
Manager (> Tools drop-down menu), or the Web UI under the menu item GSG FILES , or by
using SCPI file management commands (see "MMEMory:COPY" on page 306).
Note: Restoring factory defaults on the unit will also reset this file to the factory
default for the unit.
File Format "
pps.cal
"
[boardid]
FREQ_BAND offset
Boardid-board0, board1, board2, board3
FREQ_BAND - GPS_L1, GPS_L2, GPS_L5, GLO_L1, GLO_L2, GLO_L3
Example file for a GSG-64 with GPS L1 and L2:
[board0]
GPS_L1 -40.0E-9
GPS_L2 -40.0E-9
[board1]
GPS_L1 -60.0E-9
GPS_L2 -60.0E-9
[board2]
GPS_L1 -60.0E-9
GPS_L2 -60.0E-9
[board3]
GPS_L1 -60.0E-9
GPS_L2 -60.0E-9
5.4 NMEA Logging
GSG offers the possibility to log a scenario’s execution in NMEA data. Every second a “snap
shot” of the user and satellites’ status is taken and recorded in the form of 3 standard NMEA
sentence types.
RMC sentence describes essential GPS position, velocity and time
GGA sentence describes essential fix data, providing 3D location and accuracy data.
Height of geoid above WGS84 ellipsoid is being approximated according to EGM96
geoid model and fix quality defaults to GPS fix (SPS).
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User Manual GSG-5/6 Series Rev. 26
5.4 NMEA Logging