Helical Technology

Tallysman® helical antennas are designed for applications that require high performance and versatility, with an absolute minimum of weight, such as unmanned aerial vehicles (UAV’s).

Tallysman® helical antennas are designed for applications that require high performance and versatility, with an absolute minimum of weight, such as Unmanned Aerial Vehicles (UAV’s).

Tallysman®’s quadrifilar helical (HC) technology features a precision-tuned helix antenna element with excellent gain and axial ratio over all elevation and azimuth angles that help to minimize multipath. The antennas feature low-current, low-noise amplifiers (LNA) with an integrated low-loss pre-filter to protect against harmonic interference from high-amplitude interfering signals, providing a high signal-to-noise ratio. With their extremely low weight and their excellent performance without a ground plane, Tallysman® helical antennas are ideal for precise point positioning (PPP) and real-time kinematic (RTK) applications.

Tallysman Helical Family

The Helical antenna family features:

  • Extreme lightweight, ranging from 5 g to 42 g
  • A novel helical antenna element delivering excellent axial ratio and multipath rejection
  • Broad GNSS band coverage, including single, dual, triple, and L-band corrections services
  • Robust, military-grade, IP67-compliant plastic enclosure.
  • An extremely low noise amplifier (LNA) combined with a pre-filter
  • Ideal design and performance for real-time kinematic (RTK) and precise point positioning (PPP) applications
  • A certified Iridium model
  • A choice of housed and embedded models

Tallysman® Helical Antenna Family

Model

Signals Supported

Weight

Horizontal Phase Center Variation

Antenna
Connector

Mounting

HC600

Iridium

24 g

N/A

SMA

2 screws (2.5 mm)

HC600E

5 g

MCX

mounting ring

HC771

L1, G1, E1, B1

24 g

±3 mm

SMA

2 screws (2.5 mm)

HC771E

10 g

MCX

mounting ring

HC871

L1/L2, G1/G2, E1, B1

29 g

±3 mm

SMA

2 screws (2.5 mm)

HC871E

10 g

MCX

mounting ring

HC872

L1/L2, G1/G2, E1, B1,
L-band correction services

42 g

±3 mm

SMA

3 screws (2.5 mm)

HC872E

12 g

MCX

mounting ring

HC882

L1/L2, G1/G2/G3, E1/E5b, B1/B2,
L-band corrections services

42 g

±3 mm

SMA

3 screws (2.5 mm)

HC882E

12 g

MCX

mounting ring

HC975

L1/L2/L5, G1/G3, E1/E5ab, B1/B2/B2a,
L-band corrections services

42 g

±3 mm

SMA

3 screws (2.5 mm)

HC976

L1/L2/L6, G1/G2, E1/E6, B1/B3,
L-band corrections services

42 g

±3 mm

SMA

3 screws (2.5 mm)

HC976E

12 g

MCX

mounting ring

HC977

L1/L2/L5, G1/G2/G3, E1/E5ab, B1/B2/B2a,
L-band corrections services

42 g

±3 mm

SMA

3 screws (2.5 mm)

HC977E

12 g

MCX

mounting ring