Aircraft antenna 20-7009

GPS

The 20-7009 Four Element CRPA Antenna is a miniature four element Global Positioning System (GPS) Controlled Reception Pattern Array (CRPA) antenna designed primarily for airborne rotary wing and ground-based operations. The 20-7009 consists of four light-weight, temperature stable radiating elements which operate with nominally hemispherical coverage in the GPS L1 and L2 bands. The array is available in a variety of options, including passive and active configurations. The active configuration contains four low-noise amplifiers protected by filters, providing rejection of unwanted out-of-band signals, and limiters which provide protection from high power signals. The active CRPA is designed to work in conjunction with a compatible Chelton Digital Antenna Control Unit (DACU), which houses the anti-jam electronics functionality. Interference Rejection Jamming Resistance Navigation Accuracy M-code Small Size Low Mass Minimum Frequency 1215.6 Maximum Frequency 1587.42 Impedence 50 Return Loss VSWR < 1.8:1 Gain 25.25 dB ± 1.75 dB and 28 dB ± 1.5 dB at the L1 and L2 band centres respectively at 23°C. Polarization RHCP Full Dimensions LxWxH mm 114.3 x 114.3 x 43.5 Height Above Base Plate mm 43.5 Mass kg 0.5 Connector Type SMA female connectors