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By default, the 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 [7].
5.2.4.1. GNSS Frequency
Table 37: GNSS Frequency
Type
GPS/Galileo/QZSS
Galileo
QZSS
GLONASS
BeiDou
NOTES
1.
Keep the characteristic impedance for the trace of GNSS antenna
π-type
2.
Place the
matching components as close to the antenna as possible.
3.
Keep the digital circuits, such as that of (U)SIM card, USB interface, camera module, display
connector and SD card, away from the antenna traces.
4.
Keep 75 dB isolation between each antenna traces.
5.
Keep 15 dB isolation between each antenna to improve the receiving sensitivity. and 20 dB isolation
between 5G NR UL MIMO
5.2.4.2. GNSS Performance
The following table shows GNSS performance of RM510Q-GL.
Table 38: GNSS Performance
Parameter
Description
Cold start
Sensitivity
(GNSS)
Reacquisition
RM510Q-GL_Hardware_Design
Frequency
1575.42 ± 1.023 (L1)
1575.42 ± 2.046 (E1)
1575.42 (L1)
1597.5–1605.8
1561.098 ±2.046
TRX0 and TRX1
antennas.
Conditions
Autonomous
Autonomous
5G Module Series
RM510Q-GL Hardware Design
Unit
MHz
MHz
MHz
MHz
MHz
to 50 Ω.
(ANT3_GNSSL1)
Typ.
-148
-159
Unit
dBm
dBm
63 / 87
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