Smart Module Series
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5
GNSS
SC262R
series module integrates a IZat™ GNSS engine (GEN 8C) which supports multiple positioning
and navigation systems including GPS, GLONASS, Galileo and BDS. With an embedded LNA, the
module provides greatly improved positioning accuracy.
5.1. GNSS Performance
The following table lists the GNSS performance of the module in conduction mode.
Table 30: GNSS Performance
1. Tracking sensitivity: the minimum GNSS signal power at which the module can maintain lock (keep
positioning for at least 3 minutes continuously).
2. Reacquisition sensitivity: the minimum GNSS signal power required for the module to maintain lock
within 3 minutes after loss of lock.
3. Acquisition sensitivity: the minimum GNSS signal power at which the module can fix position
Parameter
Description
Conditions
Typ.
Unit
Sensitivity
Acquisition
Autonomous
-146
dBm
Reacquisition
Autonomous
-158
dBm
Tracking
Autonomous
-158
dBm
TTFF
Cold start
@ open sky
Autonomous
30.8
s
Warm start
@ open sky
Autonomous
21
s
Hot start
@ open sky
Autonomous
3.3
s
Accuracy
CEP-50
Autonomous
@ open sky
2.5
m
NOTE