Reach M2 Multi-band GNSS antenna
The multiband helical antenna is designed and crafted for precision positioning, covering the GPS/QZSS-L1/L2, GLONASS-G1/G2, Galileo-E1, and BeiDou-B1 frequency bands, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)]. Weighing only 29 g, the lightweight and compact HC871 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 HC871 features an industry-leading low current, low-noise amplifier (LNA) that includes an integrated low-loss pre-filter to prevent harmonic interference from high-amplitude signals, such as 700 MHz band LTE and other nearby in-band cellular signals. All Tallysman® helical antenna elements are protected by a robust military-grade IP67-compliant plastic enclosure. The enclosure’s base provides two threaded inserts for secure attachment, as well as a rubber O-ring around the outer edge to seal the antenna base and its integrated SMA connector. Tallysman®’s HC871 has passed a rigorous 30-hour vibration test procedure, consisting of five cycles of 2-hour tests per axis (x, y, z): • Cycle 1: 1.05 Grms;• Cycle 2: 1.20 Grms;• Cycle 3: 1.35 Grms;• Cycle 4: 3.67 Grms;• Cycle 5: 3.67 Grms. Coverage GPS/QZSS-L1, GPS/QZSS-L2, GLONASS-G1, GLONASS-G2, Galileo-E1, BeiDou-B1 Mount Surface Mount / Direct Screw Amplifier Gain 28 dB typ. Connector Options SMA Features Very low noise preamp: 2.0 dB typ. Axial ratio: ≤ 0.5 dB at zenith LNA gain: 28 dB typ. Low current: 15 mA typ. ESD circuit protection: 15 kV Invariant performance from 2.2 to 16 VDC IP67, REACH, and RoHS compliant Benefits Extremely Lightweight (29 g) Ideal for RTK and PPP surveying systems Excellent RH circular polarized signal reception Great multipath rejection Increased system accuracy Excellent signal-to-noise ratio Industrial temperature range Rugged design, ideal for harsh environments