单词 | tuned-radio-frequency receiver |
释义 | tuned-radio-frequency receiver [¦tünd `rād·ēo ¦frē·kwǝn·sē ri´sē·vǝr] ELECTRONICS A radio receiver consisting of a number of amplifier stages that are tuned to resonance at the carrier frequency of the desired signal by a gang capacitor; the amplified signals at the original carrier frequency are fed directly into the detector for demodulation, and the resulting audio-frequency signals are amplified by an a-f amplifier and reproduced by a loudspeaker. Abbreviated TRF receiver. |
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