Gnss Receiver; General Description; Gnss Performance - Quectel EG91 Series Hardware Design
Lte standard module
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Also See for EG91 Series:
- Hardware design (98 pages) ,
- Hardware design (94 pages) ,
- Hardware design (109 pages)
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4
GNSS Receiver
4.1. General Description
EG91 series module includes a fully integrated global navigation satellite system solution that supports
GPS, GLONASS, BeiDou, Galileo and QZSS.
EG91 series module supports standard NMEA-0183 protocol, and outputs NMEA sentences at 1 Hz data
update rate via USB interface by default.
By default, EG91 series module GNSS engine is switched off. It has to be switched on via AT command.
For more details about GNSS engine technology and configurations, see document [4].
4.2. GNSS Performance
The following table shows GNSS performance of EG91 series module.
Table 22: GNSS Performance
Parameter
Description
Cold start
Sensitivity
Reacquisition
(GNSS)
Tracking
Cold start
@ open sky
TTFF
Warm start
(GNSS)
@ open sky
Hot start
EG91_Series_Hardware_Design
Conditions
Autonomous
Autonomous
Autonomous
Autonomous
XTRA enabled
Autonomous
XTRA enabled
Autonomous
LTE Standard Module Series
Typ.
Unit
-146
dBm
-157
dBm
-157
dBm
34.6
s
11.57
s
26.09
s
3.7
s
1.8
s
58 / 105
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