LT-3100 User & Installation Manual Rev. 1.06 Web server
Lars Thrane A/S www.thrane.eu Page 125 of 155
Figure 165: GNSS receiver horizontal position error
GNSS module
The GNSS receiver used in the LT-3130 Antenna Unit is a 72 ch. receiver with SBAS reception. The GNSS
receiver performance is listed in Table 32.
The GNSS receiver can be configured to the options listed in Table 33. The GPS, SBAS, GLONASS
configuration is the default configuration.
The horizontal position accuracy (static) has been measured for different configurations of the GNSS
receiver, see Figure 165.
IMPORTANT: The installation of the LT-3130 Antenna Unit will affect the performance of the GNSS
receiver. If line-of-sight to the GNSS satellites are disturbing the quality of the signal
received by the GNSS receiver, then degraded performance must be accepted.
GNSS receiver performance
GNSS: < 2.5 m
SBAS: < 2 m
CEP, 50%, 24 hours static, -130 dBm, > 6 SVs
By default, the GNSS receiver is configured for
GPS, SBAS, GLONASS reception
Time-To-First-Fix (cold acquisition): 26 s.
Table 32: GNSS receiver performance
GNSS Receiver configuration
Table 33: GNSS receiver configuration
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