The Hy-Gain TH7DX is a 7-element, three band beam antenna designed for broadband, high performance operation on the Amateur 10,15 and 20 meter bands. Broadbanding is accomplished through the use of two fully trapped driven elements. Stainless steel hardware and clamps are used on all electrical connections. Hy-Gain's 50 ohm BN-86 balun and preformed feed straps are supplied. The TH7DX also comes with a wire boom support for additional strength. The antenna can be rotated with Hy-Gain's HDR-300, Ham IV or TaX rotators.