ClearStream antennas represent a new breakthrough in size and unmatched ultra efficient design and gain. Advanced design software allows these 10x 20 antennas to be smaller and powerful across the entire DTV spectrum offering consistent high gain. Advancements in antenna efficiency allows up to 98% of the available broadcast signal to actually reach the incoming antenna cable rather than being lost to impedance mismatches. The patented ClearStream2 Tapered Loop design receives UHF channels and higher level VHF frequencies with a range of about 50 miles. They are engineered for extra strength and durability, using anodized aluminum for corrosion resistance and are easy to assemble.