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Item #: HC771E

HC771E Single-Band Helical Antenna


The Tallysman HC771E features a 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.

SKU: 33-HC771E-28 Categories: , Manufacturer: Tallysman Wireless

Tallysman HC771E Single-Band Helical Antenna

Weighing only 10 g, the lightweight and compact HC771E from Tallysman features a precision-tuned helix element that provides excellent axial ratios and operates without the requirement of a ground plane. It is designed to receive the GPS/QZSS-L1, GLONASS-G1, Galileo-E1, and BeiDou-B1 frequency bands, as well as SBAS (WAAS, EGNOS & MSAS).


  • Lightweight (10 g)
  • Excellent RH circular polarized signal reception
  • Excellent signal-to-noise ratio
  • Industrial temperature range
  • Great multipath rejection


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

All embeded helicals include an integrated MCX straight female connector.

Mechanical Drawing

Tallysman HC771E Single-Band Helical Antenna Datasheet

Tallysman Connector and Cable Options

Tallysman offers a number of connector and cable options for its antennas. Use the guide below to find the available options for your antenna or contact us for help.

Tallysman Part Number Ordering Guide

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