Labels:text | screenshot | diagram | sketch OCR: ANTENNA V ANTENNA RADIO POMER FREQUENCY INTERMEDIATE MIXER MULTIPLIER AMPLIFIER FILTER FREQUENCY MULTIPLIER AMPLIFIER AMPLIFIER FREQUENCY AUDIO CLIPPER CRYSTAL DISCRIMINATOR AMPLIFIER AMPLIFIER FILTER OSCILLATOR MICROPHONE A. A double-conversion receiver B. A variable-frequency oscillator A. A band-pass filter C. A superheterodyne receiver B. A crystal oscillator D. An FM receiver FIGURE 17-3 C. A reactance modulator FIGURE 17-4 D. A rectifier modulator