Wi-Sys Communications Inc. WS3978-HR High Gain No Interference Permanent Mount GPS Antenna with dual SAW High Rejection Filter Applications: Anti-jamming / Mission Critical GPS Fixed Timing & Positioning Applications WiMAX / Fixed Wireless Broadband Security and Military Applications Fleet Management & Telematics Marine Vessel Installations 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 all- plastic, non-corrosive low profile package for vehicle mount or with a cone-shaped radome cover 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. WS3978-HR dimensions (mm) WS3978-HR-DH dimensions (mm) Features: 15KV ESD circuit protection Weather proof, all-plastic, non-corrosive inch thru-hole or bracket mount enclosure Voltage range 2.7 to 5.5 V Very high rejection Dual SAW filter High gain LNA, 40dB (typ.) Technical Specifications Wi-Sys Communications Inc. Environmental Specifications Operating temp: -40c to +85c (-45c to +85c storage) WS3978-HR High Gain, High Rejection Weather Proof: IP67 Permanent Mount GPS Antenna Mechanical Dimensions: Out-of-band Filter Rejection WS3978-HR: 60 mm dia. x 21 mm H WS3978-HR-DH: 65mm dia. x 44.4mm H Weight: 50g Housing: GE Lexan EXL9330, Colour BK1334 (other colours available) Mounting: thru-hole or bracket mount Connector: TNC Female connector (flying-cable option also available) Shock: Vertical axis 50G, Other axes 30G Vibration: 3 axis, sweep = 15 min 10 200 Hz log sweep: 3G Antenna Response Frequency: 1575.42 MHz Gain: 90 3 dBic 20 -2.0 dBic Polarization: Right Hand Circular Axial ratio: 90 4 dB 20 6 dB Electrical Ordering information: Voltage: 2.7 to 5.5 VDC Current: 15mA ESD circuit protection: 15KV WS3978-HR: High gain, very high rejection, all plastic low profile housing with TNC connector LNA Specifications Frequency: 1572.5 1578 MHz Output Impedance: 50 Ohm WS3978-HR-DH: High gain, very high rejection VSWR: 1.5:1 max (at connector) all plastic housing with cone-shaped radome Gain: 40 dB (typical) cover and TNC connector Noise figure: 3.1 dB (typical) Wi-Sys Communications Inc. 31B Richardson Side Road Ottawa, ON K2K 0A1 Canada Tel 613.254.7386 Fax 613.254.7388 sales wi-sys.com www.wi-sys.com