If you can't view the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=oiBi9RbNBUY.
This video from "0033mer" does an exceptionally good job of explaining basic antenna theory in terms anyone can understand. The use of a bagel and a small "rubber duck" mobile antenna to illustrate radiation patterns is a stroke of genius.
The video describes how antennas work and the properties of different configurations, including the common dipole and 1/4 wave monopole. With this basic knowledge established, the video shows you how to build your own monopole antenna. This video is a simple, accurate, and practical introduction to antennas. The video would make a great presentation to an amateur/ham radio license class. Place a copy of this well-done program in your ham radio reference library.
For the latest Amateur/Ham Radio news and information, please visit these websites:
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).