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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 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

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