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Calian TW170 Coaxial GNSS RF Surge Protectors

Calian TW170 Coaxial GNSS RF Surge Protectors are professional-grade coaxial GNSS full-band surge protectors or lightning arrestors. These GNSS RF surge protectors interface a GNSS antenna with the corresponding receiver while protecting the receiver from high-voltage strikes. The Calian TW170 supports GPS/QZSS-L1/L2/L5, QZSS-L6, GLONASS-G1/G2/G3, BeiDou-B1/B2/B2a/B3, Galileo-E1/E5a/E5b/E6, NavIC-L5, and L-Band correction services. The TW170 features a highly tuned design based on a gas discharge tube (GDT), enabling the surge protector to handle surge currents of up to 20kA. This design feature effectively isolates the receiver from damaging electrical currents resulting from lightning strikes or static discharge on the GNSS antenna.

Features

  • Up to 20kA surge current protection
  • 300W maximum power handling
  • Wide frequency range (full GNSS spectrum)
  • DC pass, low insertion-loss, low voltage standing wave ratio (VSWR)
  • Clear input and output markings
  • Mounting and grounding straps included
  • IP67-compliant rugged military-grade enclosure

Applications

  • GNSS signal distribution
  • GNSS receiver testing
  • High-availability applications
  • Network and infrastructure timing

Specifications

  • 1100MHz to 1700MHz frequency range
  • 0.3dB to 0.5dB insertion loss
  • 50Ω impedance
  • VSWR
    • 1.1:1 | 1.1:1 (typical)
    • 1.4:1 | 1.4:1 (maximum)
  • 12.5V operating voltage
  • 175µJ throughput energy
  • 14V turn-on voltage
  • IP67 environmental rating
  • -40°C to +85°C operating temperature range

Mechanical Drawing & Dimensions

Mechanical Drawing - Calian TW170 Coaxial GNSS RF Surge Protectors
Yayınlandı: 2026-01-06 | Güncellenmiş: 2026-01-09