FCC Amateur Extra Question Pool
Top-tier FCC Amateur Extra pool with advanced rules, engineering calculations, receiver and transmitter systems, and antenna design.
- Pool
- US_EXTRA
- Region
- US
- From
- -
- Through
- -
Study Guide
The Amateur Extra exam is the final tier of U.S. amateur radio licensing. It requires a solid understanding of advanced electrical principles, complex circuit design, specialized propagation modes, and comprehensive FCC regulations.
Review Path
- Begin with FCC rules and operating procedures. Focus on station restrictions, auxiliary station control, and special operations, as these build directly on General class knowledge.
- Tackle electrical principles, components, and practical circuits next. Dedicate extra time to RLC circuit calculations, op-amp configurations, and component failure modes.
- Study receivers, transmitters, and signals. Understand how bandwidth adjustments affect signal-to-noise ratios and master deviation ratio calculations for FM signals.
- Conclude with antennas, feed lines, propagation, and safety. Focus on calculating effective radiated power (ERP) and understanding impedance transformations in transmission lines.
High-Yield Focus
- Effective Radiated Power (ERP) calculations involving transmitter power, feed line losses, duplexer losses, and antenna gain.
- Resonant frequency calculations for RLC circuits and interpreting impedance plots on the complex plane.
- Operational amplifier voltage outputs, inverting vs. non-inverting configurations, and characteristics of grounded-grid amplifiers.
- Deviation ratio formulas for FM signals and the methods used to generate specific modulation types.
Common Confusions
- Forgetting that the carrier frequency in Upper Sideband (USB) is the bottom edge of the signal, meaning the bandwidth extends upward from the carrier.
- Assuming a shorted transmission line always acts as a short circuit. A 1/4-wavelength line actually inverts the impedance, presenting a very high impedance at the generator.
- Overlooking the negative sign when calculating the output voltage of an inverting operational amplifier circuit.
- Confusing physical orientation with electrical phase. The electric and magnetic fields of an electromagnetic wave are at right angles, not 90 degrees out of phase.
Readiness Check
- You can consistently solve RLC resonance, ERP, and deviation ratio problems without relying on a formula sheet.
- You can accurately identify components and predict the behavior of the practical circuits and logic gates shown in the exam figures.
- You are comfortable with the specific frequency limits, bandwidth restrictions, and control operator privileges unique to the Extra class.
Topic Review
Extra class rules and station restrictions
Extra class rules and station restrictions groups the E1 section questions for focused review and easier weak-point tracking.
Operating procedures and special operations
Operating procedures and special operations groups the E2 section questions for focused review and easier weak-point tracking.
Radio wave propagation
Radio wave propagation groups the E3 section questions for focused review and easier weak-point tracking.
Receivers, transmitters, and measurements
Receivers, transmitters, and measurements groups the E4 section questions for focused review and easier weak-point tracking.
Electrical principles and calculations
Electrical principles and calculations groups the E5 section questions for focused review and easier weak-point tracking.
Components and circuit devices
Components and circuit devices groups the E6 section questions for focused review and easier weak-point tracking.
Practical circuits and system design
Practical circuits and system design groups the E7 section questions for focused review and easier weak-point tracking.
Signals, modulation, and digital modes
Signals, modulation, and digital modes groups the E8 section questions for focused review and easier weak-point tracking.
Antennas and transmission lines
Antennas and transmission lines groups the E9 section questions for focused review and easier weak-point tracking.
Safety
Safety groups the E0 section questions for focused review and easier weak-point tracking.