High-Precision RTK Positioning Module

ER-GM-440 Features:
1. 30×40mm size, single-sided surface mount module;
2. RTK initialization time is better than 5s, supporting RTK calculation over 20km;
3. 20Hz high data output rate;
4. Adaptable to low-cost active ceramic antennas.

High-Precision RTK Positioning Module

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    ER-GM-440 High-Precision RTK Positioning Module


    ER-GM-440 High-Precision RTK Positioning Module adopts the new generation full system full frequency point high-precision SoC chip-Nebulas-II, which supports 432 super channels. Its powerful processing capability and embedded JamShield anti-interference technology can simultaneously track BDS, GPS, GLONASS, Galileo, and SBAS, QZSS and other system-wide satellite signals and anti-jamming processing. Through the enhanced RTK engine calculation, the advantages of multiple systems are fully utilized, and high-performance, high-reliability centimeter-level accuracy is achieved on the basis of low-power and low-cost solutions. The positioning performance is significantly superior. Other single-frequency RTK products on the market. ER-GM-440 integrates the on-board MEMS chip and U-Fusion integrated navigation algorithm, which can effectively solve the situation where the positioning results are interrupted due to the loss of satellite signals. It can also provide continuous high quality in complex environments such as buildings, tunnels, viaducts and shades.


    System-wide single-frequency high-precision RTK surface-mount module, centimeter-level positioning accuracy

    30 × 40mm size, single-sided surface mount module

    RTK initialization time is better than 5s, supporting RTK calculation over 20km

    20Hz high data output rate

    Adaptable to low-cost active ceramic antennas

    Onboard MEMS integrated navigation, support U-fusion tight integrated navigation technology


    Drones, robots

    Smart driving test

    Precision agriculture


    Aisle 432 channels, based on Nebulas-II chip
    Signal GPS L1, BDS B1, GLONASS L1, Galileo E1, QZSS L1
    Single point positioning (RMS) Plane: 1.5m  Elevation: 3.0m
    GPS accuracy (RMS) Plane: 0.4m  Elevation: 0.8m
    RTK (RMS) Plane: 1.0cm+1ppm  Elevation: 1.5cm+1ppm
    Speed accuracy (RMS) 0.03m/s
    Timing accuracy (RMS) 20ns
    Orientation accuracy (RMS) 0.2°/1m baseline
    Time to first fix (TTFF) Cold start <25s
    Initialization time <5s (typical value)
    Initial reliability >99.9%
    Recapture time <1s
    Data format NMEA-0183, Unicore
    Differential data RTCM 2.3/3.0/3.2
    Positioning update rate 10Hz
    Power consumption 0.8W
    Physical properties
    Size 30×40×4mm
    Weight 8g
    Operating temperature -40°C~+85°C
    Storage temperature -55°C~+90°C
    Humidity 95% non-condensing
    Vibration GJB150.16-2009, MIL-STD-810
    Shock GJB150.18-2009, MIL-STD-810
    Electrical index
    Voltage 3.3VDC+5%/-3%
    Voltage ripple 100mV p-p(max)
    LNA power output 4.75~5.0V, 0~100mA
    Power consumption 1.4W (typical)
    Function interface
    3xUART, 1xI2C, 1xSPI (LV-TTL), 1xPPS (LV-TTL), 1xEvent input


    1. What are the quotation methods?

    If you have DHL or Fedex account, we can quote EXW price, otherwise CIF or FOB price.

    2. Are there any discounts?

    After we submit the sample price, if more quantity is needed, we will quote the bulk price.

    3. How long will it take to deliver the goods after placing the order?

    For sensors, parts and modules: in stock-one week; no stock-2-4 weeks; For systems, generally, 8-12 weeks.

    4. How to deal with the quality problems?

    After confirming that the product has quality problems, we will replace it for you free of charge in the shortest possible time.

    If interested in High-Precision RTK Positioning Module, pls contact us: info@ericcointernational.com

    Aerospace, Maritime, UAV
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