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FIBOCOM SC138-
NA
Series Hardware Guide
78/88
6 GNSS
6.1
Overview
SC138SC138 series intelligent modules support GPS, GLONASS and Beidou and other positioning
systems. LNA is embedded in the module, which can effectively improve the sensitivity of GNSS.
6.2
Performance Index
Test conditions: supply voltage 3.8 V, ambient temperature 25ºC.
Table 6-1 GNSS positioning performance
Parameter
Description
Type Result
Unit
Sensitivity
Acquisition
-145
dBm
Tracking
-158
dBm
C/N
-130dBm
39
dB-Hz
TTFF
Cold Start
45
s
Warm Start
42
s
Hot Start
3
s
CEP
Static accuracy
(
95% @-
130dbm
)
5
m