Here’s your video introduction to Section 3.3 of the ARRL Extra Class License Manual for Ham Radio, Station Control. The beacon web page mentioned in the video can be found at http://www.ncdxf.org/beacon/intro.html. You can find a complete list of these videos, along with an introductory video, by clicking here.
After you have finished viewing the video, reading the text, and ensuring you understand all the answers to the relevant questions in the question pool, you may return to the list of videos by clicking here.