FN990
Family Hardware Design Guide
1VV0301752 Rev. 3 Page 65 of 92 2022-10-07
Not Sub
ect to NDA
Note: Please refer to the FN990 Family AT Commands Reference
Guide, 80691ST11097A for detailed information about GNSS
operating modes and GNSS antenna selection.
GNSS Characteristics
The below table specifies the GNSS characteristics and expected performance:
Parameters Typical Measurement Notes
Sensitivity
Tracking Sensitivity -161 dBm Standalone or MS based
Acquisition -148 dBm
Cold Start -146 dBm
TTFF
Hot 1 sec Open Sky, mean TTFF
Warm 27 sec Open Sky, mean TTFF
Cold 28 sec Open Sky, mean TTFF
Min update rate 1Hz
CEP <2m
Open sky conditions.
Standalone
Table 435: GNSS Characteristics
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