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Certus Reference Manual • Configuring and Monitoring Certus
U-blox GNSS Receiver
When using a u-blox GNSS receiver, the following configuration rules are applicable:
By default, GPS, Galileo and GLONASS are enabled, along with SBAS and QZSS correction services.
l
When selecting a GNSS constellation, all frequencies for that constellation must be selected.
l
SBAS and QZSS correction services can also be enabled for all constellation configurations , except
l
when using GPS, Galileo and BeiDou together.
Figure 49: Certus Web UI U-blox GNSS Configuration Page
The table below lists the supported constellations and the corresponding GNSS sample period depending upon
the number of constellations selected. When setting the
GNSS Packet and 10.4.38 Raw Satellite Data Packet
multiple of the sample period.
# of Constellations
Configured
1
2
3
v2.4
Sample Example Effect-
Period ive Packet 60
Rate
50 ms 1 ms - 99 ms = 50
ms (20 Hz)
100 ms - 149 ms
= 100 ms (10 Hz)
150 ms - 199 ms
= 150 ms (6.67
Hz)
80 ms 1 ms - 159 ms =
80 ms = 12.5 Hz
160 ms - 239 ms
= 160 ms (6.25
Hz)
100 ms 1 ms - 199 ms =
100 ms (10 Hz)
200 ms - 299 ms
= 200 ms (5 Hz)
8.1.3.3 Data Ports, the packet rate of the
are automatically adjusted to the next lower integer
Supported Con-
stellation Con-
figurations
GPS
Galileo
GLONASS
BeiDou
GPS & Galileo
GPS & GLONASS
GPS & BeiDou
GPS, GLONASS &
Galileo
GPS, GLONASS &
BeiDou (no correction
services)
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10.4.10 Raw
2024-12-17