NVIS Antenna
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Near Vertical Incident Skywave (NVIS) Antenna

The goal of most high frequency (HF) operators is the communicate with stations as far away from where they are as possible.  In an emergency this goal is not as helpful as communication locally and regionally.  The Near Vertical Incident Skywave (NVIS) antenna, properly set-up and tuned, can provide reliable communications for about a 300 miles radius from where it is set up.  NVIS does this by aimming the signal straight up, as opposed to a low angle.  The NVIS' signal bounces back from the ionsphere, sometimes called "cloudwarming," and covers the local and regional area.  NVIS solves a problem of communication with stations too far away from ground wave propogation and too close for skip communications.  NVIS is an important emergency antenna.

Pat Lambert, W0IPL's NVIS Page

A technical overview article.

WB5UDE's NVIS Overview

A more user friendly overview.

Carl Jelinek, N6VNG's NVIS Page

A straight-to-the-point NVIS construction article.  

WB5UDE's NVIS Lesson A comprehensive non-technical overview of the NVIS antenna.

Harold Melton, KV5R's Understanding NVIS Antennas and Propagation

A comprehensive NVIS technical article with links.

Pat Lambert, W0IPL's NVIS Propagation Page Information on how an NVIS antenna propogates.  
NVIS dipole specification chart Be sure to place a description of your link for your viewers here!
Gary Wilson, K2GW’s 4lb. Single Mast

40M-80M antenna in a case. 

Field Deployed NVIS

Military NVIS.

W2IK Emergency NVIS Antenna Kit
D. W. Thorne, K6SOJ’s Mobile NVIS Page
L.C. Cebik, W4RNL's NVIS Height Page

Determining the proper height for the NVIS antenna. 

Add your link here Be sure to place a description of your link for your viewers here!