NVIS Antenna
  Neighborhood Emergency Radio Project | Ham Radio @ SAR City. | (white paper) What to Do When the Telephone, Cellphone and Internet Fails in a Disaster? | (option) Satellite Phones. | (option) MURS. | (option) FRS/GRMS Frequently Asked Questions | FRS/GMRS As Emergency Radios | FRS/GMRS Equipment. | Using FRS/GMRSs. | (option) CB. | (option) Ham Radio. | List:  Emergencies Hams Helped In | In Honor of Jerry Martin, W6TQF, and Reid Blackburn, KA7AMF | Ham Licensing. | Practice Ham Exams. | Ham Radio Classes. | Ham Exams. | Ham Radio in the Schools, Grants, and Emergency Communcations. | x | Legal Aspects of Emergency Communications | Links: Amateur Radio Emergency Communications Organizations | Volunteering, Legal Aspects and Pitfalls. | 2006, Ham Radio @ SoRo NC. | 2006, Ham Radio @ DONE Congress. | 2007, Ham Radio @ So. Central NC. | 2007, Ham Radio @ SAR City. | 2007, La Mirada Drill. | 2007, Culver City Drill. | Personal Preparedness. | Go-Kit. | Resources: Training for EmComm Operators. | Propagation.  | Antenna Restrictions and EmComm. | Understanding Antennas. | NVIS Antenna. | Unobstrusive Antennas. | Antennas Projects - HF. | Antenna Projects - VHF/UHF. | More Antenna Projects. | Safety and First Aid. | Mobile and Portable Stations. | Emergency Power. | Emergency Alerts. | Favorite Links  

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!