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EA91

Choke Ring Antenna

EA91 adopts high-gain broadband antenna to receive GNSS signals such as GPS, BDS, GLONASS, Galileo, QZSS and L-Band. The scheme of multi-stage 3D choke coils with completely symmetrical distribution is adopted to achieve higher phase center stability and excellent anti-multipath interference performance. It has excellent performance that the phase center coincides with the mechanical center.

  • EA91
eSurvey GNSS
Building 4, No. 651 Wanfang Rd, Minhang District,
201112 Shanghai
China
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Description

1. The EA91 uses the total symmetric distribution multi-stage of 3D choke-ring scheme with completely symmetric distribution for higher phase center stability and superior multi-path jamming performance.

2. It has excellent coincidence performance of phase center and mechanical center.

3. Wideband dual-band multi-constellation satellite mode GNSS measuring antenna.

4. Excellent polarization axis ratio performance

5. Excellent phase center performance

6. Excellent anti-multipath jamming performance

eSurvey GNSS at Intergeo 2021

During 2021.9.21- 9.23, we will participate in this year's INTERGEO exhibition in Hannover, Germany. Welcome friends who like GPS and surveying to our booth. During this special period, eSurvey will fight the epidemic together with you and share surveying experience, and we look forward to seeing you at Booth 23C.35. Get your free tickets here

Specifications

  • Type
    Land
  • Year of introduction
    2017
  • Height [m]
    0.263
  • Depth [m]
    0.37
  • Total Weight [kg]
    7.7
  • Housing and finish material
    Aluminum-magnesium alloy
  • Design keywords
    Choke ring
  • Mounting
    5/8-11UNC-2B
  • Multipath rejection techniques and methods
    Multi-stage 3D choke coils
  • Operating temperature: min. [°C]
    -55
  • Operating temperature: max. [°C]
    85
  • Humidity resistance
    100%
  • Water sand and dust proof
    IP67
  • Shock and vibration proof
    Shock resistant
  • Min. operating power [V]
    3.3
  • Max. operating power [V]
    12
  • Tracked satellite signals
    GPS, GLONASS, Galileo, BeiDou, SBAS
  • Type of GPS measurements
    L1, L2, L5
  • Type of GLONASS measurements
    L1, L2, L3
  • Type of Galileo measurements
    E1, E2, E5, E6
  • Type of Beidou measurements
    B1, B2, B3
  • Type of SBAS measurements
    WAAS, EGNOS, QZSS, Gagan, MSAS
  • L-Band
    Y
  • Amplifier
    Y
  • TNC female
    Y

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