“No Interference” GPS Antenna with Dual SAW High Rejection Filter
Wi-Sys
about_us contact us
Check out our range of products which include: Active GPS Antennas, Active directional 802.11 Antennas (coming soon), and satellite fax messaging
 home / products / antennas / no interference gps






The Wi-Sys Antenna Family

WS3910
The high gain active GPS antenna with SAW filter
WS3914
Our lowest current model, 2 mA active GPS antenna
WS3916
Low cost GPS antenna
WS3917
Low cost GPS antenna
WS3940
Glass Mount combined Active GPS and Cellular
WS3940-ULD
Embedded, Glass Mount combined Active GPS and Cellular
WS3942
Mag Mount combined Active GPS and Cellular
WS3950
WS3960

The high gain embedded patch antenna with optional ground plane
WS3954
WS3964

The low power embedded patch antenna with optional ground plane
WS3957
WS3967

The low price embedded patch antenna with optional ground plane
WS3977
Through-hole Mount GPS Antenna

“No Interference” GPS Antenna with Dual SAW High Rejection Filter

Wi-Sys: “No Interference” GPS Antenna with Dual SAW High Rejection Filter
  • 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

WS3911-HR: “No Interference” GPS Antenna with Dual SAW High Rejection Filter

The WS3911-HR “No Interference” GPS Antenna with Dual SAW High Rejection Filter has the industry’s 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.

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

Technical Specifications

Environmental Specificationstemperature-40c to +80c operating
-45c to +80c storage
IP67 / Weather proof
Mechanicaldimensions45mm x 51mm x 12mm
2.05" x 2.32" x 0.53"
weight120g (4.2 oz)
attachment methods:Magnetic (5 lb lift-off force) or permanent (pre-threaded for 3 x M2.5 screws)
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 - 5 VDC
current7.5 mA @ 3.3VDC
11.5 mA @ 5VDC
ESD circuit protection15K Volts
cable1.5 DS-QEHV Shikoku Cable Co. Ltd.
cable length3 metres (standard)
other lengths optional
cable loss1.3 dB/m typical
connectorSMA standard
other connectors optional
LNA Specifications frequency1572.5 - 1578 MHz
output impedance50 Ohm
VSWR1.5:1 max (at connector)
gain25 dB @ 3.3VDC: (typical)
25.5 dB @ 5VDC: (typical)
noise figure3.1 dB