B4QA2GGGB gnss antenna
B4QA3GGGB gnss antenna

Four-system Full-band Choke Ring GNSS Antenna

This antenna is a full-band measurement choke antenna that covers GPS L1/L2, GLONASS L1/L2, BDS B1/B2/B3, GalileoE5a/E5b/E2/E1, which meets the current multi-system compatibility and high Demand for precision micro-deformation measurement.

Category:

Description

  • The antenna part adopts a multi-feed point design and a completely symmetrical antenna structure, with a relatively stable phase center, reducing the influence of the antenna on measurement errors.
  • Adopting choke coil design to achieve excellent multipath suppression effect and high phase center stability and good repeatability.
  • The unique waterproof and dustproof design ensures that the core unit and components are completely sealed to meet the complex outdoor environment and can work normally outdoors for many years.

    • Application

    Mainly used in some occasions that have extremely high requirements for measurement accuracy, such as earthquake prediction, high-precision differential reference stations, and other demanding applications.

    B4QA2GGGB Dimension

    B4QA2GGGB gnss antenna dimension

    B4QA3GGGB Dimension

    B4QA3GGGB gnss antenna dimension

    Additional information

    Antenna Type

    Four-system Full-band External Choke Ring Antenna
    Part number

    B4QA2GGGB/B4QA3GGGB
    Frequency

    GPS L1/L2
    BDS B1/B2/B3
    GLONASS L1/L2
    Galileo E1/E2/E5a/E5b
    Polarization

    Right-handed circular polarization
    Gain

    Elevation 90°≥5.5dBi
    Axle Ratio

    Elevation 90°≤3dB
    Cross polarization ratio

    ±60°≥25
    Phase center error

    ±1mm
    LNA Gain

    45±2dB
    VSWR

    ＜2.0
    Noise Coefficient

    ＜2.0
    Operating Voltage

    3.3～18VDC
    Operating Current

    ≤65mA
    Input Resistance

    50ohm
    Antenna Size

    B4QA2GGGB: Φ322*265mm
    B4QA3GGGB: Φ380*310mm
    Output Connector

    TNC-K
    Weight

    B4QA2GGGB: ≤8.5kg
    B4QA2GGGB: ≤15kg
    Working Relative Humidity

    95%
    Working Temp.

    -40°C～+75°C
    Storage Temp.

    -55°C～+85°C

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