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®’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.
The Helical antenna family features:
- Extreme lightweight, ranging from 4 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 | Mounting |
Iridium Passive | 24 g | N/A | SMA | 2 screws (2.5 mm) | |
4 g | MCX | mounting ring | |||
Iridium Active | 24 g | N/A | SMA | 2 screws (2.5 mm) | |
4 g | MCX | mounting ring | |||
L1, G1, E1, B1 | 24 g | ±3 mm | SMA | 2 screws (2.5 mm) | |
4 g | MCX | mounting ring | |||
GNSS/QZSS-L1/L2, GLONASS-G1/G2, Galileo-E1, BeiDou-B1 + Passive Iridium | 42 g | ±3 mm | SMA | 3 screws (2.5 mm) | |
8 g | MCX | mounting ring | |||
GNSS/QZSS-L1/L2, GLONASS-G1/G2, Galileo-E1, BeiDou-B1 + Active Iridium | 42 g | ±3 mm | SMA | 3 screws (2.5 mm) | |
8 g | MCX | mounting ring | |||
L1/L2, G1/G2, E1, B1 | 29 g | ±3 mm | SMA | 2 screws (2.5 mm) | |
5 g | MCX | mounting ring | |||
L1/L2, G1/G2, E1, B1, | 42 g | ±3 mm | SMA | 3 screws (2.5 mm) | |
8 g | MCX | mounting ring | |||
L1/L2, G1/G2/G3, E1/E5b, B1/B2, | 42 g | ±3 mm | SMA | 3 screws (2.5 mm) | |
8 g | MCX | mounting ring | |||
L1/L2/L6, G1/G2, E1/E6, B1/B3, | 42 g | ±3 mm | SMA | 3 screws (2.5 mm) | |
8 g | MCX | mounting ring | |||
L1/L2/L5, G1/G2/G3, E1/E5ab, B1/B2/B2a, | 42 g | ±3 mm | SMA | 3 screws (2.5 mm) | |
8 g | MCX | mounting ring | |||
GPS/QZSS-L1/L2/L5, QZSS-L6, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b/E6, BeiDou-B1/B2/B2a/B3, NavIC-L5 + L-Band correction services | 11 g | TBD | RG174 cable | mounting ring | |
GPS/QZSS-L1, GPS/QZSS-L2, GPS/QZSS-L5, GLONASS-G1, GLONASS-G2, GLONASS-G3, Galileo-E1, Galileo-E5a, Galileo-E5b, BeiDou-B1, BeiDou-B2, BeiDou-B2a, NavIC-L5, L-band correction services | 11 g | TBD | RG174 cable | mounting ring |