Orolia GSG-5 Series, User Manual With Scpi Manual, Page: 92 / 392

GALILEO
Europe; globally operating system; yet, not fully operational as of summer
2015; high-quality signals, multiple uses
BEIDOU
China; regional system (Asia); planned global expansion; open system
QZSS
Japan; regional system
IRNSS
India; regional system
3.5.10.2 Number of Satellites
The maximum number of satellites to be simulated by GSG in a given scenario is specified
separately for each available GNSS system. (For SBAS, see
"SBAS Satellites" on
page 82 ).
To edit the number of satellites for a GNSS system, navigate to: Select > [ Select Scen-
ario ] > Configure Scenario : View 3/3 > [ Satellite System ]: Enter a number "Number
of Satellites" above
The theoretical maximum number of satellites that can be simulated is 64, but this number
also depends on:
The license and GSG model used (number of available channels )
How many frequency bands are used, e.g., if 64 channels are available, 64 GNSS L1
satellite signals can be simulated, or, e.g., 32 L1/L2 satellite signals. (Note that GPS
L2 and L2C are using separate channels, as are the Galileo bands E5a and E5b.)
The default setting is Auto , i.e. GSG will determine the number of satellites simulated at
any given time during scenario execution.
Note: If GSG runs out of free channels when in Auto mode, not all satellites
will be simulated.
3.5.10.3 Frequency Bands and Signal De-/Activation
When testing GNSS receivers, it is oftentimes required to test for multi-frequency, multi-
constellation performance. All of the four major GNSS systems, i.e. GPS, Glonass, Galileo,
and BeiDou, transmit numerous signals across several frequencies, but through inter-
national cooperation, these frequency bands have been coordinated:
The RF signals transmitted from satellites of different constellation systems…
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3.5 "Select" Menu