Radio Amateur Quiz Canadian License

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Question A-005-006-001

If the signals of two repeater transmitters mix together in one or both of their final amplifiers and unwanted signals at the sum and difference frequencies of the original signals are generated and radiated, what is this called?

Correct Answer

Intermodulation interference

Explanation

Intermodulation occurs when two or more signals mix in a non-linear device (like an overdriven amplifier), creating new signals at sum, difference, and harmonic frequencies of the original signals.

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