CLM920 TD3 LTE Module Hardware Usage Guide
Shanghai Yuge Information Technology co., LTD
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Chapter 4 Overall technical indicators
4.1 Chapter overview
The CLM920 TD3 module RF overall specifications include the following sections:
working frequency
Conducted radio frequency measurement
Conducted receiving sensitivity and transmit power
GNSS reception performance
Antenna requirements
Module power consumption characteristics
4.2 GNSS reception performance
Table 4-1 Main parameters of GNSS
Parameter
Description
Min
Typical Max
unit
GPS L1 frequency
Center frequency 1575MHz 1574.4
1576.4 MHz
GLONASS frequency
Center frequency
1601.7MHz
1597.5
1605.9 MHz
BeiDou frequency
Center frequency 1561MHz 1559.1
1563.1 MHz
Galileo E1
Center frequency
1575.42MHz
1573.4
1577.5 MHz
GNSS support channel 55 channels
GNSS positioning
accuracy
Unobstructed open space
2.5
3
M
GNSS sensitivity
Cold start
-145
dBm
GNSS sensitivity
Recapture
-157
dBm
GNSS sensitivity
track
-158
dBm
GNSS positioning time Cold start
35
S
GNSS positioning time Warm start
30
S
GNSS positioning time Hot Start
2
S
GNSS update
frequency
Default 1Hz
1
Hz
GNSS data format
NMEA-0183