Gnss Receiver - Quectel EC25-V User Manual

4

GNSS Receiver

4.1. General Description
EC25 includes a fully integrated global navigation satellite system solution that supports Gen8C-Lite of
Qualcomm (GPS, GLONASS, BeiDou, Galileo and QZSS).
EC25 supports standard NMEA-0183 protocol, and outputs NMEA sentences with 1Hz via USB interface
by default.
By default, EC25 GNSS engine is switched off. It has to be switched on with AT command. For more
details about GNSS engine technology and configurations, please refer to document [3].
4.2. GNSS Performance
The following table shows EC25 GNSS performance.
Table 21: GNSS Performance
Parameter Description
Cold start
Sensitivity
Reacquisition
(GNSS)
Tracking
Cold start
@open sky
TTFF
(GNSS)
Warm start
@open sky
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Conditions
Autonomous
Autonomous
Autonomous
Autonomous
XTRA enabled
Autonomous
XTRA enabled
Confidential / Released
LTE Module Series
EC25-V User Manual
Typ. Unit
TBD dBm
TBD
dBm
TBD
dBm
TBD
s
TBD
s
TBD
s
TBD
s
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