Current Shortwave High Frequencies
Shortwave service is provided by the Navy as an option for their ships without the Navy's Direct-to-Sailor (DTS) capability.  Shortwave also serves as a backup to those customers with DTS.  Shortwave service is also an option for land-based listeners in remote locations that do not have access to local or satellite-delivered AFRTS full Satellite Network (SATNET) services.  Shortwave services are intended to operate 24/7 but do experience disruptions due to maintenance and atmospheric conditions.