5G Module Series
RM505Q-AE Hardware Design
RM505Q-AE_Hardware_Design 48 / 79
4
GNSS Receiver
4.1. General Description
RM505Q-AE includes a fully integrated global navigation satellite system solution that supports Gen9-Lite
of Qualcomm (GPS, GLONASS, BeiDou/Compass, and Galileo).
The module supports standard NMEA-0183 protocol, and outputs NMEA sentences at 1 Hz data update
rate via USB interface by default.
The GNSS engine is switched off by default. It has to be switched on via AT command. For more details
about GNSS engine technology and configurations, see
document [3]
.
4.2. GNSS Performance
The following table shows GNSS performance of the module.
Table 23: 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