LTE-A Module Series
EM160R-GL_Hardware_Design 53 / 73
4.2.2. GNSS Performance
Table 33: GNSS Performance
Parameter
Description
Condition
Typ.
Unit
Sensitivity
Cold start
Autonomous
-146
dBm
Reacquisition
Autonomous
-158
dBm
Tracking
Autonomous
-158
dBm
TTFF
Cold start
@ open sky
Autonomous
31.13
s
XTRA enabled
17.87
s
Warm start
@ open sky
Autonomous
26.59
s
XTRA enabled
7.07
s
Hot start
@ open sky
Autonomous
2.12
s
XTRA enabled
2.6
s
Accuracy
CEP-50
Autonomous
@ open sky
2
m
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
successfully within 3 minutes after executing cold start command.
NOTE