3971D-HR

GNSS ANTENNAS GPS L1 Antennas High Performance 3971D-HR High Rejection Low-Profile Permanent Mount GPS Antenna RoHS COMPLIANT The 3971D-HR, low-profile permanent mount GPS antenna provides 28 dB gain and superior out-of-band rejection performance and is the optimum choice for GPS Tracking and Timing applications with high RF fields. It features a precision tuned custom ceramic patch element for maximum signal reception, 15KV ESD circuit protection, a multi-stage LNA circuit and dual high rejection SAW filters. This enables the 3971D-HR to provide a reliable and clear GPS signal while minimizing loss-of-lock, even when conditions are less than ideal. Available in an all-plastic, non-corrosive conical package for vehicle mounting or fixed installations. Features • • • • • • Weather proof, all-plastic, non-corrosive, low-profile enclosure ¾ inch thru-hole or bracket mount High out-of-band rejection for stand-alone or mobile applications where interference is a concern and performance is critical Innovative dual SAW filter design Voltage range: 2.7 to 5.5 V Low current draw: 8 mA @ 3.3 VDC 3971D-HR STANDARD CONFIGURATION Model Connector Mount 3971D-HR TNC jack ¾” thru-hole or bracket mount* ELECTRICAL SPECIFICATIONS - GNSS ANTENNA Frequency Range LNA Gain Element Gain Polarization 1575.42 ± 10 MHz 28 dB 3 dBic @ 90° -2 dBic @ 20° Right hand circular ELECTRICAL SPECIFICATIONS - GNSS ANTENNA, continued Out of Band Rejection Current Draw DC Voltage Noise Figure > 50 dBc @ ± 40 MHz 8 mA @ 3.3 VDC 2.7-5.5 VDC 3.1 dB (typical) MECHANICAL & ENVIRONMENTAL SPECIFICATIONS Dimensions Weight Housing Material Temperature Range ESD Circuit Protection Ingress Protection 2.36” Dia x .83” H (60 x 21 mm) 0.11 lbs (50 g) PC -40°C to +85°C operating 15 KV IP67** * Order MMK1925 bracket for compatible mounting. 132 PCTEL, Inc. WEB: www.antenna.com