Racelogic LabSat 3, User Manual

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Frequency Band Constellations
1575.42MHz GPS L1, Galileo E1, QZSS, SBAS
1602MHz GLONASS L1
1561.098 BeiDou B1
Depending on the model, LabSat 3 will have 1, 2 or 3 RF channels. This allows recording of 1, 2 or 3 frequency bands
so, for example, a 2 constellation LabSat 3 may record the band containing GPS L1/Galileo E1 and the band containing
GLONASS L1 simultaneously. Recording of the desired constellations is configured in the CONSTELLATION menu. In
this menu, the user can tick up to three of the desired constellation groups (depending on version). If only one
constellation is ticked, then an additional option for 2 bit will be available to allow 2 bit quantised recording for the
selected constellation.
Once the constellations are configured, exit the menu and press the REC button to begin recording. A new file will be
created each time recording starts. The file name used corresponds to the constellations selected. For example, if GPS
and GLONASS are selected for recording, the file created will be GPSGLO_nnn where nnn is a number that increments
with each new recording. Details of the LS3 file format are available on request from Racelogic.
During recording, pressing the OK button will switch the display to show satellite levels for either GPS or GLONASS
satellites. In this display mode, the up and down arrow keys will toggle between GPS or GLONASS
constellations. BeiDou constellation is not currently supported by the internal monitor but BeiDou B1 signals can still be
recorded and replayed.
To maximise battery life during recording, LabSat 3 has a power save mode which is enabled by default in the setup
menu. Power save mode recognises when running from battery power and will dim the display backlight and power-
down the internal GPS/GLONASS monitor after 30 seconds of user inactivity.
If recording from passive antennas such as the Maxtenna M1516HCT-SMA GPS/GLONASS antenna, enabling the
power-save mode will also provide the highest possible sensitivity by ensuring that unused modules within LabSat 3 are
switched off.
https://racelogic.support/03LabSat_GPS_Simulators/LabSat_3/LabSat_3_User_Manual/
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