Tallysman HC977 GNSS Helical Antenna

Tallysman HC977 Triple-Band Helical GNSS Antenna with L-Band

The HC977 triple band helical GNSS antenna is designed and crafted for precision positioning, covering the GPS/QZSS-L1/L2/L5, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b, BeiDou-B1/B2/B2a, and NavIC-L5 frequency bands, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], as well as and L-band correction services.

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Overview

Weighing only 42 g, the lightweight HC977 triple-band helical GNSS antenna with L-Band 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 HC977 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 HC977 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 three threaded holes in the base for secure attachment of the unit.

An embedded version is also available: HC977E.

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: 1.6 dB
  • Axial ratio: ≤ 0.5 dB at zenith
  • LNA gain: 28 dB typ. or 35 dB typ.
  • Low current: 15 mA typ. or 21 mA typ.
  • ESD circuit protection: 15 kV
  • Invariant performance from: 2.2 to 16 VDC
  • IP67, REACH, and RoHS compliant

Benefits

  • Extremely lightweight (42 g)
  • Ideal for L1/L2/L5, E1/E5a/E5b RTK surveying systems
  • Great multipath rejection
  • Increased system accuracy
  • Excellent signal-to-noise ratio

Warranty

Calian GNSS (formerly Tallysman Wireless) offers a warranty of 1-3 years on all of it’s products. The warranty ensures that the products are free from defects of materials or workmanship and conform to Calian’s specifications under normal use. Embedded antennas are covered by a one (1) year standard warranty. All housed antennas and accessories (inline amplifiers, splitters, and bias tees) manufactured after January 1, 2020 are covered by a three-year warranty. The warranty is covered in more detail on the Calian GNSS Warranty page.

Why Buy from Us?

In business since 2004, Canal Geomatics is an authorized dealer for Calian GNSS and has established itself as an industry-leading distributor of high-precision positioning products in North America. Our mission is to find the best solution for each unique application and extend premium support to ensure the long-term success of our customers. We offer both volume and reseller discounts for the majority of our product lines.

Ordering

The HC977 triple-band helical GNSS antenna 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.