Wi-Sys WS3978-HR-DH

Wi-Sys WS3978-HR-DH

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The WS3978-HR-DH High Gain No Interference Permanent Mount GPS Antenna provides 40 dBs of gain and very high out-of-band rejection performance.


It features a perfectly tuned custom ceramic patch element for maximum signal reception, ESD circuit protection, a 3 stage LNA circuit and a dual SAW very high rejection out-of-band filter, enabling the WS3978-HR-DH to provide most reliable and clear GPS signal reception while minimizing loss-of-lock, even in high RF fields. Available in an all-plastic, non-corrosive low profile package for vehicle mount or with a cone-shaped radome cover for fixed installations, the WS3978-HR-DH high gain, high rejection permanent mount GPS antenna is the optimum choice for applications with high RF fields requiring long cable runs.


  • Weather proof, all-plastic, non-corrosive, low profile or cone-shaped enclosure
  • Very high rejection Dual SAW filter
  • High gain LNA, 40dB (typ.)
  • 15KV ESD circuit protection
  • 3/4 inch thru-hole or bracket mount
  • Voltage range 2.7 to 5.5 V