The AN/ARC-34 is an airborne UHF communications system, that was used in many U.S. aircraft of the 1950s and 1960s, such as the A-37, B-52, B-57, F-5, F-86, F-100, F-101, F-102, C-130, C-135, C-137, C-140, CH-3, H-43, H-53, T-38, T-39 and U-2.