Title :
HF radio in Southwest Asia
Author :
Wallace, Michael A.
Author_Institution :
Commun. Officers Sch., Marine Corps. Univ., Quantico, VA, USA
Abstract :
The use of an HF propagation mode, called rear-vertical incidence skywave (NVIS), by the US Marine Corps is discussed. In an NVIS system, HF signals are radiated nearly vertically. The signal returned from the ionosphere covers the skip zone with an omnidirectional pattern providing a communications range from the transmitter site out to a radial distance of 0 to 300 miles. The development of HF communication systems by the Marine Corps in the 1980s is outlined. The application of several HF communication systems during Operation Desert Storm is described.<>
Keywords :
ionospheric electromagnetic wave propagation; military systems; mobile radio systems; 0 to 300 miles; HF communication systems; HF propagation; HF radio; HF signals; Operation Desert Storm; Southwest Asia; US Marine Corps; ionosphere; omnidirectional pattern; radial distance; rear-vertical incidence skywave; skip zone; transmitter site; Asia; Circuits; Conductivity; Directive antennas; Earth; Frequency; Hafnium; Ionosphere; Radio transmitters; Satellite broadcasting;
Journal_Title :
Communications Magazine, IEEE
