GB/T 8977-1988
Abolished300Ω/75Ω balun for FM and TV broadcast receiver
调频、电视广播接收机用300Ω/75Ω 平衡-不平衡阻抗变换器
Application Summary AI generated
This standard specifies the technical requirements, test methods, and inspection rules for 300Ω/75Ω baluns used in FM and television broadcast receivers. It is applied in the design, manufacturing, and quality verification of impedance-matching transformers that convert balanced 300-ohm antenna inputs to unbalanced 75-ohm coaxial cable inputs in consumer radio and TV equipment. The standard ensures consistent signal transfer and impedance matching for FM radio and analog television reception in home entertainment systems.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.