Gnss Receiver; General Description; Gnss Performance - Quectel EG25-G Hardware Design

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GNSS Receiver

4.1. General Description

EG25-G Mini PCIe includes a fully integrated global navigation satellite system solution that supports
Gen8C-Lite of Qualcomm (GPS, GLONASS, BeiDou/Compass, Galileo and QZSS). Additionally, it
supports standard NMEA-0183 protocol, and outputs NMEA sentences at 1 Hz data update rate via USB
interface by default.
By default, EG25-G Mini PCIe GNSS engine is switched off. It has to be switched on via AT command.
For more details about GNSS engine technology and configurations, please refer to document [3].

4.2. GNSS Performance

The following table shows GNSS performance of EG25-G Mini PCIe.
Table 15: GNSS Performance
Parameter Description
Cold start
Sensitivity
Reacquisition
(GNSS)
Tracking
Cold start
@ open sky
TTFF Warm start
(GNSS) @ open sky
Hot start
@ open sky
EG25-G_Mini_PCIe_Hardware_Design
EG25-G Mini PCIe Hardware Design
Conditions
Autonomous
Autonomous
Autonomous
Autonomous
XTRA enabled
Autonomous
XTRA enabled
Autonomous
XTRA enabled
LTE Standard Module Series
Typ. Unit
-146 dBm
-156 dBm
-157 dBm
35 s
15 s
28 s
3 s
2 s
1.6 s
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