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HC977 
L1/L2/L5/G1/G2/G3/E1/E5a/E5b/B1/B2/ B2a + L-band | 28 dB or 35 dB
- 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
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.
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.
An embedded version is also available. Click here to learn about the HC977E.
| L-band Correction | Required |
| Antenna Frequency | Triple Band GNSS |
| Mount | Direct Screw |
| Brand | Calian |
| Description | Part-Number |
|---|---|
| HC977 | 33-HC977-xx |