Audio Theory Course for the 2012-2016 FCC Element 4 Amateur Extra Class radio license examination. Recorded by author Gordon West, WB6NOA, the course walks listeners through all 702 questions and answers in the FCC Extra Class question pool. Includes the exciting sounds of ham radio, and is an excellent companion to West's Extra Class book. On 6 audio CDs. Includes a User's Guide that ties the audio tracks to pages in the book. A great way to learn if you spend a lot of time in your car or pickup.