HC771

HC771 Single-band Helical Antenna

The patented HC771 helical antenna is designed and crafted for precision positioning, covering the GPS/QZSS-L1, GLONASS-G1, 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 24 g, The light and compact HC771 features a precisiontuned 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 HC771 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 housed 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 Oring around the outer edge to seal the antenna base and its integrated male SMA connector.

Calian's helical family 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:

• Autonomous unmanned aerial vehicles (UAVs)
• Precision GNSS positioning
• Precision land survey positioning
• Mission-critical GNSS timing
• Network timing and synchronization
• Sea and land container tracking
• Fleet management and asset tracking
• Marine and avionics systems
• Law enforcement and public safety
 

Antenna: