Quectel EC25-V - GNSS Receiver

LTE Module Series
EC25-V User Manual
EC25-V_User_Manual Confidential / Released 45 /
69
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
Conditions
Typ.
Unit
Sensitivity
(GNSS)
Cold start
Autonomous
TBD
dBm
Reacquisition
Autonomous
TBD
dBm
Tracking
Autonomous
TBD
dBm
TTFF
(GNSS)
Cold start
@open sky
Autonomous
TBD
s
XTRA enabled
TBD
s
Warm start
@open sky
Autonomous
TBD
s
XTRA enabled
TBD
s