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Quectel GPS Module

Product Name: Quectel GPS Module
Item No. : L20
Size&Interface: 16*12.2*2.4mm/ LCC 24pins

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Product Description


L20 is a GPS receiver module with the highest performance which embeds the SIRFstarIVTM chip solution with the new ROM2.2 version. With 48 PRN channels, L20 acquires and tracks satellites in the shortest time even at indoor signal level. With a compact profile of 16.0 x 12.2 x 2.4mm, it perfectly suits for vehicle tracking, personal tracking, asset tracking, connected PND, security device and other industrial applications.

L20 supports aided-GPS function without the necessity of data download from server since it captures ephemeris data from satellites locally and predicts ephemeris out to 3 days.

The moudle contains an active jammer remover which tracks and removes up to 8 CW (Carrier Wave) type signals up to 80dB-HZ (equals to –90 dBm typ.) signal level. This feature has greatly improved the navigation performance.

L20 also provides an important function which named GPIO Baud Rate Detection. With GPIO settings, L20 can be configured to output NEMA at standard baud rates.

Key benefits

● GPIO Baud Rate Detection

● 5 Hz Navigation Update Rate

● 1 SV Fast Time Setting

● High tracking sensitivity, -163dBm

● High acquisition sensitivity, -148dBm

● Power Saving Mode

● Self-Assisted CGEE function


● Low power consumption

Acquisition: 39mA @ -130dBm

Tracking: 36mA @ -130dBm

General Specifications
L1 Band Receiver
Channel Number 48 channels
C/A Code
Horizontal Position
Autonomous <2.5 m CEP
SBAS <2.0 m CEP
Velocity Accuracy Without Aid < 0.01m/s
Acceleration Accuracy Without Aid 0.1 m/s²
Timing Accuracy <500ns

Reacquisition Time

TTFF(Time to First Fix) Cold Start <35s
Warm Start <35s
Warm Start with 10s typ.
Hot Start <1s
Sensitivity Autonomous Acquisition -148dBm
Tracking -163dBm
Reacquisition -160dBm
Environmental Operating Temperature -40℃ to 85℃
Storage Temperature -45℃ to 125℃
Dynamic Performance Maximum Altitude Max.18288m
Maximum Velocity Max.514m/s
Maximum Acceleration 4G
Dimensions 16.0 x 12.2 x 2.4mm
Weight Approx. 1.0g
Active Jammer Remover Removes in-band jammers up to 80 dB-Hz Tracks up to 8 CW jammers
Serial Interfaces
One UART Adjustable: Baud rate configured by Hardware
Default: 4800 bps
Update rate 1Hz (default), up to 5Hz
I/O Voltage 2.0V ~ 3.6V
Protocols NMEA
Electrical Data
Power Supply 2.0V ~ 3.6V
Power Acquisition 39mA (passive antenna)
Power Tracking 36mA (passive antenna)
Power Saving ATP, PTF, (Note1)
Antenna Type Passive or Active
Antenna Power External or Internal VCC_RF