NVIS - AbsoluteAstronomy.com

NVIS can refer to:

Near Vertical Incidence Skywave
Near Vertical Incidence Skywave
Near Vertical Incidence Skywave, or NVIS, is a radio-wave propagation method that provides usable signals in the range between groundwave and skywave distances . It is used mainly for military and paramilitary communications and by radio amateurs...
Night Vision Imaging System
NVIS, Inc, manufacturer of virtual reality display systems

The source of this article is wikipedia, the free encyclopedia. The text of this article is licensed under the GFDL.