Enhance HD reception in weak signal areas using any passive (non-amplified) antenna. SmartKom automatically selects the best signal from up to three antennas—even across different bands or transmitters—eliminating the need for a rotator. It combines filtering, mixing, and amplification into one device, delivering a stable, optimized signal through a single coaxial cable. With automatic gain adjustment, you get reliable performance in any weather—perfect for multiple TVs or devices.