The object is to define the conditions and methods of measurement to be applied. Measurements are concerned with bit error rate due to random noise, audio frequency characteristics, harmonic distortion, dynamic range of sound channel, crosstalk, signal-to-noise ratio, mode identification. The standard does not specify performance requirements. The decoder unit is usually integrated into a DBS tuner. The methods of measurement for the tuner are described in Part 2.
Số hiệu tiêu chuẩn
IEC 61079-4*CEI 61079-4
Tên tiêu chuẩn
Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band; part 4: electrical measurements on sound/data decoder units for the digital subcarrier NTSC system
Ngày phát hành
1993-06-00
Tiêu chuẩn tương đương
DIN IEC 61079-4 (1994-09), IDT * C92-201-4, IDT * TS IEC 61079-4 (1998-04-22), IDT * JS 1478-4 (2002-06-16), IDT
Tiêu chuẩn liên quan
IEC 61079-2 (1992-06)
Thay thế cho
IEC/DIS 12A(CO)168 (1992-03)
Từ khóa
Broadcast engineering * Data * Decoders * Digital signals * Earth stations * Electrical engineering * Electrical measurement * Measurement * Measuring techniques * Methods for measuring * NTSC * Power measurement (electric) * Radio circuits * Radio engineering * Radio equipment * Radio receivers * Radiocommunication * Receivers * Reception * Satellite communications * Satellite links * Signal transmission * Sound * Specification (approval) * Telecommunication * Telecommunication links * Telecommunication systems * Telecommunications * Power measurement