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Leo Store - Hemisphere GNSS - A631 GNSS Smart Antenna 1

A631 GNSS Smart Antenna


The A631 GNSS Smart Antenna offers professional-grade accuracy at an affordable price, perfect for agricultural, marine, GIS, mapping, and more. Enjoy quick start-up, scalable accuracy, and clear LED status indicators. Its durable enclosure houses both antenna and receiver, powered through various sources for versatility. With multiple output options, it's compatible with almost any interface. Supported by Hemisphere's Atlas Portal, enabling firmware updates and Atlas subscriptions for precise accuracy levels

  • GNSS Receiver:

    Receiver Type Multi-Frequency GPS, GLONASS, BeiDou, Galileo, QZSS, and Atlas
    Signals Received GPS L1CA/L1P/L1C/L2P/L2C/L5 GLONASS G1/G2/G3/P1/P2 BeiDou B1i/B2i/B3i/B10C/B2A/B2B/ACEBOC Galileo E1BC/E5a/E5b/E6BC/ALTBOC QZSS L1CA/L2C/L5/L1C/LEX/IRNS L5 Atlas
    Update Rate 10 Hz standard, 20 Hz optional (with activation)



    Positioning RMS (67%)
    no SA:
    1.2 m
    SBAS 0.3 m
    Atlas H10 0.04 m
    Atlas H30 0.15 m
    Atlas Basic 0.5 m
    RTK 8 mm + 1 ppm


    Communications Ports:

    Ports 2 full-duplex RS-232, CAN
    CAN Baud Rates 4800 - 460,800
    Correction I/O Protocol: Hemisphere GNSS proprietary, RTCM v2.3 (DGPS), RTCM v3 (RTK)
    Data I/O Protocol NMEA 0183, NMEA 2000, Hemisphere GNSS binary, Bluetooth 2.0 (Class 2), Wi-Fi
    Timing Output 1 PPS, CMOS, active low, falling edge sync, 10 kΩ, 10 pF load


    Data & Storage:

    Storage Type 16 GB (internal)



    Input Voltage 7-32 VDC
    2.0 W nominal (L1/L2 GPS/GLONASS; L-band)
    0.17 A nominal (L1/L2 GPS/GLONASS; L-band)
    Power Isolation No
    Reverse Polarity
    Antenna Voltage Internal Antenna



    Dimensions 15.8 L x 15.8 W x 7.9 H (cm)
    Weight: < 1.05 kg
    12-pin male (metal)
    1-14 UNS-2A female adapter, 5/8-11 UNC2B adapter, flat mount available
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