Time to study some more

 The ARRL Extra Class License Manual for Ham Radio is your ticket to every privilege granted to amateur radio operators all frequencies, operating modes, and power levels. It has all the questions and answers, with detailed explanations, for examinations taken between July 1, 2020 and June 30, 2024. To upgrade to Amateur Extra, you must already hold a General class license (or have recently passed all of the exams required for a General license). This guide is all you need to not only pass the exam but understand the material. You'll study small sections at a time: Operating Practices Rules and Regulations Electrical Principles Components and Building Blocks Electronic Circuits Radio Signals and Measurements Radio Modes and Equipment Antennas and Feed Lines Topics in Radio Propagation