Wi-Sys WS3911-HR

Wi-Sys WS3911-HR

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The WS3911-HR “No Interference”” GPS Antenna with Dual SAW High Rejection Filter has the industrys best out-of-band filter performance.


The WS3911-HR features ESD circuit protection, a patented two-stage low noise amplifier and a dual SAW high rejection filter. It also features a custom designed ceramic patch element that minimizes detuning effects caused by adjacent objects. The WS3911-HR provides the most consistent, clear GPS signal reception while minimizing loss-of-lock in high-RF fields. Housed in a weatherproof magnetic or screw mount enclosure, the WS3911-HP GPS antenna is ideal for most demanding vehicle mounted GPS applications.


  • Very high rejection dual SAW filter
  • Patented high performance dual LNA
  • High gain: 25.5 dB @ 5 V (typ.)
  • Low current: 7.5 mA @ 3.3 V (typ.)
  • 3.1 dB low noise figure
  • 15KV ESD circuit protection
  • Wide voltage input range (2.7 – 5 VDC)
  • Weather proof housing


  • Anti-jam / Mission Critical GPS
  • Military Radios and Vehicles
  • Law Enforcement / Public Safety Avionics
  • Fleet Management & Telematics
  • Asset Tracking