This standard gives the performance requirements for FM radio frequency tuners. This RF FM tuner is designed for receiving FM broadcasts and is mainly used in high-quality home playback systems. Receiver (tuner-amplifier) performance requirements are specified in Part 8.
SJ/Z 9142.2-1987 history
1970SJ/Z 9142.2-1987 Minimum performance requirement for high fidelity audio equipment--Part 2: FM radio tuners
SJ/Z 9142.2-1987 Minimum performance requirement for high fidelity audio equipment--Part 2: FM radio tuners was changed to GB/T 15294-1994 Mininum performance requirements on high fidelity FM radio tuners.