Low Noise Permanent Mount GPS Antenna
Wi-Sys
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Check out our range of products which include: Active GPS Antennas, Active directional 802.11 Antennas (coming soon), and satellite fax messaging
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Low Noise Permanent Mount GPS Antenna

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 low noise (0.8 dB) LNA
  • 28dB gain @ 3.3V
  • Low current: 8mA (typ)
  • High rejection SAW filter
  • 15 KV ESD
  • ¾ inch thru-hole or bracket mount
  • Voltage range 2.7 to 5.5 V
  • RoHS compliant

  • Mission Critical GPS
  • Precision Ag Equipment
  • Military and Security
  • Fleet Management & Telematics
  • Fixed Timing & Positioning
  • WiMAX / Fixed Wireless Broadband
  • Marine Vessel Installations

WS3971 Low Noise Permanent Mount GPS Antenna

The WS3971 Low Noise Permanent Mount GPS Antenna has the industry’s lowest noise figure. It features a perfectly tuned custom ceramic patch element, ESD circuit protection, a patented very low noise dual stage LNA circuit and a high out-of-band rejection SAW filter. The WS3971 provides the clearest GPS signal reception while minimizing loss-of-lock even in less than ideal conditions. Available in an all-plastic, non-corrosive low profile package for mobile applications or with a dark grey or white cone-shaped radome for fixed installations, the WS3971 permanent mount GPS antenna is the optimum choice for critical GPS applications.

Technical Specifications

Environmental Specifications temperature-40c to +85c operating
-45c to +85c storage
weather proofIP67
Mechanical dimensionsWS3971: 60 mm dia. x 21 mm H
WS3971-DH: 60 mm dia. x 44 mm H
weight50g
housingGE Lexan EXL9330
mounting¾" thru-hole or bracket mount
connectorTNC Female connector
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
current8mA
LNA Specifications frequency1572.5 - 1578 MHz
output impedance50 Ohm
VSWR1.5:1 max (at connector)
gain28 dB (typical)
noise figure0.8 dB (typical)