Bench Mark US - Surveying equipment

Hemisphere A45 Antenna


Because it sees 4 major constellations in orbit (GPS, GLONASS, BeiDou, and Galileo) the Hemisphere A45 Antenna exhibits milimeter-level accuracy on land and marine applications. When you utilize the A45 antenna in challenging environments, it still brings multipath mitigation, stable phase centers, and strong SNRs to the table. The antennas, built to survive a two-meter drop test, exhibit an aluminum base pretreated for the salt, fog and spray found in marine environments.


  • GPS L1/L2/L5
  • Beidou B1/B2/B3
  • SBAS
  • L-Band
  • Galileo E1/E5a and b
  • Alumnium and Lexan Construction


  • A45 Antenna
  • 5/8″ Threaded Base


The Hemisphere A45 Antenna is the antenna designed be in the elements, especially in marine applications. Boasting an impressive IP69K environmental and EP455 shock and vibration rating, the A45 is built for salt, spray and fog.


The Hemisphere A45 Survey Grade Antenna was not just designed to last; it was also designed for reliability and professional-level accuracy. The A45 antenna is a multi-frequency, multi-constellation antenna. With access to GPS, GLONASS, Galileo, Beidou and SBAS, and L5, you can get accurate positioning and performance in high traffic environments.


Key Features

GNSS Reception

  • GPS L1/L2/L5, GLONASS G1/G2,
  • BeiDou B1/B2/B3, SBAS, L-band and
  • Galileo E1/E5a and b


GNSS Frequency

  • 1.165 to 1.278 GHz
  • 1.525 to 1.615 GHz
  • LNA Gain: 30 dB
  • LNA Noise: 2.0 dB, typical


L-Band Antenna

  • L-Band Frequency: 1.525 – 1.585 GHz
  • L-Band LNA Gain: 30 dB


Power Input

  • Input Voltage: 3.3-15 VDC
  • Input Current: 25 mA, typical



  • Enclosure: Aluminum base with Lexan™ plastic cap
  • Dimensions: 4.7 H x 15.2 D (cm)
  • 1.8 H x 6.0 D (in)
  • Weight: .50 kg (1.1 lbs)
  • Mount: 5/8 inch female thread
  • RF Connector: TNC (straight)



  • Operating Temperature: -40° C to +70° C (-40°F to +158°F)
  • Storage Temperature: -40° C to +85° C (-40°F to +185°F)
  • Enclosure Rating: IP69K
  • Shock and Vibration: EP455
  • Phase Center Variation: Less than 2 mm at GPS L1, for elevations above 15 degrees


There are no reviews yet.

Be the first to review “Hemisphere A45 Antenna”

Your email address will not be published. Required fields are marked *