Key features: ■ 4 GPS Patch Elements ■ Interference and Jamming Resistant ■ Small and light 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-ofband 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 (4-channel 7-6005, 8-channel 7-6008), which houses the anti-jam electronics functionality. Mounting 4 holes fixed location Chelton Limited has a policy of continuous development and stress that the information provided is a guide only and does not constitute an offer or contract or part thereof. Whilst every effort is made to ensure the accuracy of the information contained in this Data Sheet, no responsibility can be accepted for any errors or omissions. The copyright of antenna designs and images is copyright protected and owned by Chelton Limited. ©Chelton Limited. The Chelton Centre, Fourth Avenue, Marlow, Buckinghamshire, SL7 1TF, UK T: +44 (0)1628 472072 E: [email protected] W: chelton.com