3 in 1! For all prospective Radio Amateur Operators looking to get their certification. Each type of license can be studied by section, or tested upon with the built in exam...展开

3 in 1! For all prospective Radio Amateur Operators looking to get their certification. Each type of license can be studied by section, or tested upon with the built in exam generator. Pictures and figures are also included for the questions where applicable. Practice makes perfect! Amateur Radio…收起

-Question fixes