Gnss; Gnss Performance - Quectel SC262R Series Hardware Design

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
Parameter Description
Acquisition
Sensitivity Reacquisition
Tracking
Cold start
@ open sky
Warm start
TTFF
@ open sky
Hot start
@ open sky
Accuracy CEP-50
NOTE
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
SC262R_Series_Hardware_Design
Conditions Typ.
Autonomous -146
Autonomous -158
Autonomous -158
Autonomous 30.8
Autonomous 21
Autonomous 3.3
Autonomous
2.5
@ open sky
Smart Module Series
Unit
dBm
dBm
dBm
s
s
s
m
75 / 115