Get ready for the FCC General Radiotelephone Operator License (GROL) exam. Study with flashcards and multiple choice questions, each with hints and detailed explanations. Prepare effectively for your licensing test!

Multiple Choice

What is the term for a receiver's ability to reject adjacent unwanted signals near the desired frequency?

Selectivity is the receiver's ability to reject signals that lie close to the desired frequency. It comes from sharp filtering and tuned circuits that pass the wanted signal while attenuating nearby frequencies, reducing adjacent-channel interference. Sensitivity measures how weak a signal can be detected; dynamic range is the range of signal strengths the receiver can handle without distortion; and noise figure describes the extra noise the receiver adds. So the ability to reject adjacent unwanted signals near the desired frequency is selectivity.

Selectivity is the receiver's ability to reject signals that lie close to the desired frequency. It comes from sharp filtering and tuned circuits that pass the wanted signal while attenuating nearby frequencies, reducing adjacent-channel interference. Sensitivity measures how weak a signal can be detected; dynamic range is the range of signal strengths the receiver can handle without distortion; and noise figure describes the extra noise the receiver adds. So the ability to reject adjacent unwanted signals near the desired frequency is selectivity.