AmerTac - Zenith VN1ANTADIG Antenna Active Digitally Optimized by AmerTac - Zenith. $25.74. Our VN1ANTDIG 360 Omni-Directional Antenna is optimized for the reception of digitally broadcast UHF, VHF and HDTV signals. It has built-in high gain, wide band amplifier boosts signal strength for excellent picture and sound quality. Our Signal Clear Technology performs through extremely low noise circuitry for fewer artifacts affecting picture quality and provides exceptiona...