General Class
Intermediate license providing expanded HF privileges. Covers more advanced operating procedures, radio wave propagation, and circuit theory. 35 questions, 26 needed to pass.
What is the phase difference between the I and Q RF signals that software-defined radio (SDR) equipment uses for modulation and demodulation?
What is an advantage of using I-Q modulation with software-defined radios (SDRs)?
Which of these functions is performed by software in a software-defined radio (SDR)?
What is the frequency above which a low-pass filter’s output power is less than half the input power?
What term specifies a filter’s maximum ability to reject signals outside its passband?
How is direct binary FSK modulation generated?
What is the name of the process that changes the phase angle of an RF signal to convey information?
What is the name of the process that changes the instantaneous frequency of an RF wave to convey information?
What emission is produced by a reactance modulator connected to a transmitter RF amplifier stage?
What type of modulation varies the instantaneous power level of the RF signal?
Which of the following is characteristic of QPSK31?
Which of the following phone emissions uses the narrowest bandwidth?
Which of the following is an effect of overmodulation?
What type of modulation is used by FT8?
What is meant by the term “flat-topping,” when referring to an amplitude-modulated phone signal?
What is the modulation envelope of an AM signal?
What is QPSK modulation?
What is a link budget?
What is link margin?
What is another term for the mixing of two RF signals?
HAM Test Bank Editorial Team
Licensed Amateur Radio Operators & Volunteer Examiners
Content for General Class exam questions is based on official FCC Part 97 regulations and the NCVEC question pool.