- Final assembly of the elements and boom support on the TH7 DX - To make the final assembly of the antenna i take it al outside. The antenna complete assembled, only some alignment of the element to do. This is the support attachment on the boom, i use U-Clamps to fasten the 'parafill' support wires. I constructed this T-Boom to make support both in horizontal and vertical directions. Back to 'Shack page' <-- Go Back! ©1999/2000/2001/2002 SM2YER Goran