Southwest Antennas offers a high performance 1,090 MHz vertical omni antenna specifically for the aviation tracking market (Part # 1085-120), designed to work with any brand of ADS-B receiver and features a Type-N(f) RF connector.
Southwest Antennas has optimized the impedance of the antenna feed point and pattern to maximize performance and deliver 5.5 dBi of gain, with a design that helps pull in signals from aircraft near the antenna or at high elevation angles.