List the benefits of a superheterodyne over a TRF receiver and identify the function of each component of a superheterodyne, including all selectivity functions.
Express the relationship between the IF, local oscillator, and signal frequencies mathematically and calculate any one of them, given the other two.
Explain how the design of dual-conversion receivers allows them to enhance selectivity and eliminate image problems.
Describe the operation of the most common types of mixer circuits.
Explain the architecture and operation of direct conversion and software-defined radios.
List the major types of external and internal noise and explain how each interferes with signals both before and after they reach the receiver.
Calculate the noise factor, noise figure, and noise temperature of a receiver.
Describe the operation and purpose of the AGC circuit in a receiver.
Explain the operation of squelch circuits.
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