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  • GPS L20
  • 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 ...

    Quectel_L20_GPS_Specification_V2.0

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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

●  SBAS (WAAS, EGNOS and QZSS)

●  Low power consumption

   Acquisition: 39m@-130dBm

   Tracking: 36mA@-130dBm

 

General Specifications
  L1 Band Receiver
(1575.42MHz)
Channel Number 48 channels
  C/A Code  
  SBAS WAAS, EGNOS,QZSS
  Horizontal Position
Accuracy
Autonomous <2.5m CEP
  SBAS <2.0m CEP
  Velocity Accuracy Without Aid < 0.01m/s
  Acceleration Accuracy Without Aid 0.1m/s²
  Timing Accuracy   <500ns

 

Reacquisition Time

  <1s
  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 × 12.2 × 2.4mm
  Weight Approx. 1.0g
  Active Jammer Remover Removes in-band jammers up to 80dB-Hz Tracks up to 8 CW jammers
     
Serial Interfaces
  One UART Adjustable: Baud rate configured by Hardware
Default: 4800bps
  Update rate 1Hz (default), up to 5Hz
  I/O Voltage 2.0V ~ 3.6V
  Protocols NMEA
OSP
     
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

 

Note1: Both of the ATP (Adaptive Trickle Power) and PTF (Push To Fix) are power saving modes of L20. For more details, please refer to L20 Hardware Design.

 

The module is sensitivity to moisture absorption. Before reflow, Module should be baked for 192 hours at temperature 40℃+5℃/-0℃ and <5% RH in low-temperature containers, or 24 hours at temperature 125℃±5℃ in high-temperature containers. Care should be taken that plastic tray is not heat resistant. Module should be taken out before preheating, otherwise, the tray maybe damaged by high-temperature heating.