The A5135-H will track and follow GPS and GLONASS systems concurrently


The A5135-H is a high-sensitivity concurrent GNSS antenna receiver that integrates Qualcomm’s SiRFstar V technology into a single, compact and easy to integrate SMT device.

By supporting simultaneous GLONASS, GPS, QZSS and SBAS measurements with the industry’s best sensitivity engine, the highest accuracy, ground tracks and fastest time-to-first-fix (TTFF) are ensured even under tough operating conditions.

Product Highlights

  • Concurrent GNSS receiver
  • Pin-to-pin compatible with A2135-H / A2235-H
  • Lowest tracking power consumption
  • Download SiRF Live

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    A5135-H Overview

    Concurrent GNSS receiver

    The A5135-H will track and follow GPS and GLONASS systems concurrently. Dual reception of GPS and BeiDou or even concurrent GLONASS and BeiDou reception is still possible by setting up the parameters. Our fine tuned signal reception and sophisticated software algorithms improve availability and accuracy in urban canyon environments.

    Pin-to-pin compatible with A2135-H / A2235-H

    This A5135-H is pin-to-pin compatible with Lantronix A2135-H / A2235-A. Power, ground and dedicated pins are at the same location across device densities in order to adapt to your current design.

    Lowest tracking power consumption

    SiRFaware’s advanced low power management modes, high level of integration and multiple communication ports in a small form-factor makes the A5135-H suitable for a broad spectrum of GNSS applications where performance, cost and time to market are prime considerations.

    Download SiRF Live

    Test the performance of Lantronix GNSS receivers and develop your application with SiRF Live software. Download here

    A5135-H Tech Specs

      Channels 52
      Frequency GPS LI – 1,575 MHz GLONASS – 1,602 MHz
      Sensitivity1 GPS GLONASS
      Tracking – 165 dBm – 163 dBm
      Navigation – 160 dBm – 159 dBm
      Acquisition (cold start) – 147 dBm
      Position Accuracy2) (horizontal) < 2.5 m CEP (autonomous)

      < 2.0 m CEP SBAS

      Time To First Fix
      Hot Start2) < 1 s
      Warm Start2) < 30 s
      Cold Start2) < 35 s
      Update Rate 1 Hz / 5 Hz Supported
      SiRFnavTM High availability and coverage; improved TTFF in weak signal environments
      Jammer remover technology Detects and removes up to 8 in-band jammers with minimal loss of sensitivity
      A-GPS Embedded Extended Ephemeris (SiRFInstantFix) and Ephemeris Push support
      MEMS I2C interface Prepared to use additional sensor information for improved navigation
      UART – OSP
      Open Socket Protocol Protocol extension for SiRFstarV
      Baud rate Switchable 115.2k (default) 1,200 to 115.2k
      Ports Tx (Binary output) Rx (Binary input)
      UART – NMEA (default)
      NMEA message Switchable GGA, RMC, GSA, GSV, VTG, GLL, ZDA
      Baud rate Switchable 1,200 to 115.2k

      Default 9600

      Ports Tx (NMEA output) Rx (NMEA input)
      Supply voltage 3.0 to 3.6 VDC
      Average Current Draw (typical)
      Full power mode (Searching) Peak Current 42mA
      Full power mode (Searching) Average Current 36mA
      Full power mode (Tracking) Average Current 31mA
      Trickle Power Mode 29mA
      Hibernate Status 27uA


      L x W x H 17.78 x 16..01 x 2.5 mm
      L x W x H 0.7” x 0.65” x 0.1”
      Weight 4 g / 0.14 oz.
      Operating -40°C to +85°C
      Storage -40°C to +85°C
      Humidity Non condensing

    A5135-H Resources

    Application Spotlights
    Press Releases
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    A5135-H Part Numbers

    GNS Receivers
    A5135H GNSS

    GNSS A5135H - SiRFstarV-based 52-channel GNSS receiver built-in patch antenna, -147 dBm acquisition sensitivity, -160 dBm navigation sensitivity, I²C MEMS interface

    Lantronix Part # Name Description Order Now