Tallysman HC977 Triple-Band Helical Antenna with L-band

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.

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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.

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