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Enjoy FREE HD and improve your Winegard Sensor batwing antenna's UHF performance with the Wingman. This lightweight, sleek add-on attaches with 4 simple snap-on screws to the Sensor head to increase db gain up to 100% on DTV channels. Designed using advanced computer design software and 50 years of experience, the Sensor Wingman is optimized for Digital and HD programming, providing you with the ultimate DTV/HDTV experience.