Helicopters perform tasks in a variety of diverse places, and some operations lead you to places beyond the range of standard radio equipment. The Aeronautical Accessories brand has recognized this need and created the HF Towel Bar Antenna Kit for several Bell model helicopters. The HF antenna increases your reception in remote areas and is designed to interface with many types of HF radios. The HF antenna runs the full length of the underside of the tailboom.