Tallysman HC771 GNSS Helical Antenna

Tallysman HC771 Single-Band Helical GNSS Antenna

The HC771 single-band helical GNSS antenna from Tallysman supports coverage for GPS L1, GLONASS G1, Galileo E1 and BeiDou B1 frequency bands, as well as SBAS (WAAS, EGNOS & MSAS).

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Overview

Weighing only 24 g, the lightweight HC771 single-band helical GNSS antenna from Tallysman features a precision-tuned helix element that provides excellent axial ratios and operates without the requirement of a ground plane, making it ideal for a wide variety of applications, including unmanned aerial vehicles (UAVs).

The HC771 features an industry-leading low current, low noise amplifier (LNA) that includes an integrated low-loss pre-filter to protect against harmonic interference from high amplitude interfering signals, such as 700 MHz band LTE and other near in-band cellular signals.

The HC771 is protected by a robust, military-grade plastic enclosure with an integrated SMA connector for screw-on mounting that securely seals the unit with an O-ring, complying with IP67 standards. The enclosure also provides two threaded holes in the base for secure attachment of the unit.

An embedded version is also available.

Applications

  • Autonomous unmanned aerial vehicles (UAVs)
  • Precision GNSS positioning
  • Precision land survey positioning
  • Mission-critical GNSS timing
  • Safety and security
  • Network timing and synchronization

Features

  • Very low noise preamp: 2.0 dB typ.
  • Axial ratio: : ≤ 0.5 dB at zenith
  • LNA gain: 28 dB typ.
  • Low current: 15 mA typ.
  • ESD circuit protection: 15 kV
  • Invariant performance from: 2.2 to 16 VDC
  • IP67, REACH, and RoHS compliant

Benefits

  • Extremely lightweight (24 g)
  • Ideal for L1 RTK surveying systems
  • Great multipath rejection
  • Increased system accuracy
  • Excellent signal-to-noise ratio

Ordering

The HC771 single-band helical GNSS antenna from Tallysman is available through Canal Geomatics. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.

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