33-HC872-35

HC872 HC872 Dual Band Helical Antenna + L-band Frequency Coverage: L1/L2/G1/G2/E1/B1 + L-band Overview The lightweight HC872 helical antenna, which covers the GPS L1/L2, GLONASS G1/G2, Galileo E1, and BeiDou B1 frequency bands, as well as L-band correction services coverage, is designed and crafted for precision positioning. Weighing 37 g, the lightweight HC872 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 HC872 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 HC872 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 two threaded holes in the base for secure attachment of the unit. Applications • Autonomous, Unmanned Aerial Vehicles • Precision GPS positioning • Dual Frequency RTK receivers • Mission-critical GPS timing • Military & security • Network timing and synchronization Features • Very low noise preamp, 2 dB • Axial ratio: 36 dB < 1450 MHz > 32 dB > 1700 MHz > 45 dB L2/G2: < 1100 MHz > 35 dB < 1190 MHz > 47 dB < 1350 MHz > 48 dB Gain ������������������������������������������� 35 dB typ. 33 dB min. or 28 dB typ. 26 dB min. Noise Figure ��������������������������� 2 dB typ. VSWR �����������������������������������������