Determine if you want to learn a conceptual overview about radar or an in-depth study of how to use it. Access college university websites and search for radar. One informative site is the University of Texas Institute for Geophysics.
Take an online course for more in-depth radar training. Access sites such as Starpath for marine radar training. Access sites such as Kingschoolsonline for airplane radar operations. Register with the site you choose by creating a username and password. Enter your contact information and--if there is a charge--enter your credit card information.
Upload any plug ins or updates needed to take the online radar course. Click on the links provided. Set aside time for uninterrupted study. Print out the completion certificate once your course is completed.