HC977 Triple-Band Helical Antenna with L-band

Antennas

Coverage

GPS L1/L2/L5, GLONASS G1/G2/G3, Galileo E1/E5a/E5b, BeiDou B1/B2/B2a, L-Band Correction Services

Mount

Surface Mount / Direct Screw

Amplifier Gain

28 dB typ.

35 dB typ.

Connector Options

SMA

Back to Antennas

Overview

The lightweight HC977 helical antenna is designed and crafted for precision positioning and covers the GPS/QZSS-L1/L2/L5, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b, and BeiDou-B1/B2/B2a frequency bands, as well as L-band correction services.

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


Details

Weighing only 42 g, the HC977 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. Click here to learn about the HC977E.


Drawings

Dimensions in Milimeters