Posted in: Antenna, HF, Technical

What is NVIS?

Posted by Elizabeth Klinc, KE8FMJ on December 21, 2021 at 7:25 pm CLICK FOR NVIS NVIS stands for Near-Vertical Incidence Skywave. It is used for local-to-medium distances on HF. This is the opposite of DX, which is meant for long distances. The radio waves from NVIS travel near-vertically upwards into the ionosphere, where they are refracted back […]