What sound is heard from an audio device experiencing RF interference from a single sideband phone transmitter?
A steady hum whenever the transmitter is on the air
On-and-off humming or clicking
Distorted speech✓Richtige Antwort
Clearly audible speech
Erklärung
RF interference occurs when a strong signal is rectified by a nonlinear junction in the audio equipment, which demodulates it crudely and without the carrier reference an SSB signal needs. What comes out is speech-shaped but garbled, so the characteristic symptom is unintelligible distorted speech.