GB 4877-1985
ActiveIntermediate frequencies of television
电视中间频率
Application Summary AI generated
GB 4877-1985 specifies the standard intermediate frequency values used in television receivers and related equipment, ensuring compatibility between tuner output and signal processing stages. It applies to the design, manufacturing, and testing of analog TV sets and video equipment in China, defining the frequency at which the TV signal is converted for demodulation. This standard is critical for maintaining consistent performance and interoperability across domestic television systems.
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