HAM Radio Extra Class MCQ 2

Question 1

What is the maximum power output permitted for an amateur station transmitting on 60 meters (5 MHz) in the US?

Accepted Answer

100 watts PEP ERP

Answer

FCC Part 97 limits amateur stations on 60 meters to 100 watts PEP effective radiated power (ERP) relative to a dipole.

Question 2

Which ionospheric layer is primarily responsible for long-distance HF propagation during daylight hours?

Accepted Answer

F2 layer

Answer

The F2 layer, highest and most stable, is the primary reflector for long-distance HF signals during the day.

Question 3

In a parallel RLC circuit at resonance, the circuit impedance is at its:

Accepted Answer

Maximum value

Answer

At resonance, a parallel RLC circuit exhibits maximum impedance because the inductive and capacitive currents cancel.

Question 4

What does the term 'third-order intercept point' (IP3) indicate about an amplifier?

Accepted Answer

A measure of the amplifier's linearity and susceptibility to intermodulation distortion

Answer

IP3 is a theoretical point extrapolated from gain curves that indicates how well an amplifier handles strong signals without generating intermodulation products.

Question 5

What type of emission is produced when a single-sideband suppressed-carrier signal is transmitted?

Accepted Answer

J3E

Answer

J3E designates single-sideband suppressed-carrier telephony per ITU emission designators.

HAM - Radio Extra Class Test Practice Test

HAM - Radio Extra Class Test Practice Test

HAM Radio Extra Class MCQ 2