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 modulation envelope of an AM signal?
What is QPSK modulation?
What is a link budget?
What is link margin?
Which mixer input is varied or tuned to convert signals of different frequencies to an intermediate frequency (IF)?
What is the term for interference from a signal at twice the IF frequency from the desired signal?
What is another term for the mixing of two RF signals?
What is the stage in a VHF FM transmitter that generates a harmonic of a lower frequency signal to reach the desired operating frequency?
Which intermodulation products are closest to the original signal frequencies?
What is the total bandwidth of an FM phone transmission having 5 kHz deviation and 3 kHz modulating frequency?
What is the frequency deviation for a 12.21 MHz reactance modulated oscillator in a 5 kHz deviation, 146.52 MHz FM phone transmitter?
Why is it important to know the duty cycle of the mode you are using when transmitting?
Why is it good to match receiver bandwidth to the bandwidth of the operating mode?
What is the relationship between transmitted symbol rate and bandwidth?
What combination of a mixer’s Local Oscillator (LO) and RF input frequencies is found in the output?
What process combines two signals in a non-linear circuit to produce unwanted spurious outputs?
Which of the following is an odd-order intermodulation product of frequencies F1 and F2?
Which digital mode is used as a low-power beacon for assessing HF propagation?
What part of a packet radio frame contains the routing and handling information?
Which of the following describes Baudot code?
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Content for General Class exam questions is based on official FCC Part 97 regulations and the NCVEC question pool.