The service provides HF communications for the Ministry of Defence (Royal Air Force, Royal Navy, British Army and Joint Forces Command), other British government departments and NATO (including its Partnership for Peace organisation).
A memorandum of understanding exists to allow cooperation between the DHFCS and the US Air Force's (USAF) High Frequency Global Communications System (HFGCS) through a link to the HFGCS at the USAF facility at RAF Croughton in Northamptonshire.
A link with the Australian Defence Force's High Frequency Communications System (HFCS) based in Canberra also exists.

The service allows real-time strategic communications between users which comprise ground stations, submarines, surface vessels, fixed wing aircraft and helicopters.
The service provides HF communications for the Ministry of Defence (Royal Air Force, Royal Navy, British Army and Joint Forces Command), other British government departments and NATO (including its Partnership for Peace organisation). A memorandum of understanding exists to allow cooperation between the DHFCS and the US Air Force's (USAF) High Frequency Global Communications System (HFGCS) through a link to the HFGCS at the USAF facility at RAF Croughton in Northamptonshire. A link with the Australian Defence Force's High Frequency Communications System (HFCS) based in Canberra also exists.
The service allows real-time strategic communications between users which comprise ground stations, submarines, surface vessels, fixed wing aircraft and helicopters.
Defence High Frequency Communications Service