U.S. Military (Again) Re-Discovers HF

Newsline reports that HF radio is making a comeback for the U.S. military, which is looking at it as an alternative to its primary satellite and undersea cable systems in the Pacific and Indian Oceans. 

The Defense Information Systems Agency acknowledges that both satellites and cable systems are vulnerable to accidental or deliberate damage, and the Indo-Pacific Command's relief network has been testing HF single sideband as a backup. HF data communications are on the drawing board as well.