The NATO H band is the obsolete designation given to the radio frequencies from 6,000 to 8,000 MHz (equivalent to wavelengths between 5 and 3.75 cm) during the Cold War period. Since 1992, frequencies have been allocated, allotted, and assigned in accordance with the NATO Joint Civil/Military Frequency Agreement (NJFA).[1] However, in order to identify military radio spectrum requirements (e.g., for crisis management planning, training, electronic warfare activities, or military operations), this system is still in use.