High Gain "No Interference" Permanent Mount GPS Antenna with dual SAW High Rejection Filter

Wi-Sys: WS397X-DH - High gain GPS antenna with cone-shaped radome coverWi-Sys: WS397X - High gain GPS antenna with low profile housing
  • 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
  • ¾ inch thru-hole or bracket mount
  • Voltage range 2.7 to 5.5 V

  • Anti-jamming / Mission Critical GPS
  • Fixed Timing & Positioning Applications
  • WiMAX / Fixed Wireless Broadband
  • Security and Military Applications
  • Fleet Management & Telematics
  • Marine Vessel Installations

WS3978-HR High Gain "No Interference" Permanent Mount GPS Antenna with dual SAW High Rejection Filter

The WS3978-HR 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 to provide most reliable and clear GPS signal reception while minimizing loss-of-lock, even in high RF fields. Available in an allplastic, non-corrosive low profile package for vehicle mount or with a dark grey or white cone-shaped radome for fixed installations, the WS3978-HR high gain, high rejection permanent mount GPS antenna is the optimum choice for applications with high RF fields requiring long cable runs.

Technical Specifications

Environmental Specifications temperature-40c to +85c operating
-45c to +85c storage
weather proofIP67
Mechanical dimensionsWS3978-HR: 60 mm dia. x 21 mm H
WS3978-HR-DH: 65mm dia. x 44.4mm H
weight50g
housingGE Lexan EXL9330
mounting¾" thru-hole or bracket mount
connectorTNC Female connector
(flying-cable option also available)
shockVertical axis 50G, Other axes 30G
vibration3 axis, sweep = 15 min
10-200 Hz log sweep: 3G
Antenna Response Frequency1575.42 MHz
gain@ 90° 3 dBic
@ 20° -2.0 dBic
polarizationRight Hand Circular
axial ratio@ 90° 4 dB
@ 20° 6 dB
Electrical voltage2.7 to 5.5 VDC
current15mA
ESD circuit protection15KV
LNA Specifications frequency1572.5 - 1578 MHz
output impedance50 Ohm
VSWR1.5:1 max (at connector)
gain40 dB (typical)
noise figure3.1 dB (typical)