標準號：BS EN 61079-5-1995
中文標準名稱：12GHz頻帶衛(wèi)星廣播接收機的測量方法.MAC/包系統(tǒng)的譯碼器單元的測量方法
英文標準名稱：Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band - Electrical measurements on decoder units for MAC/packet systems
標準類型：M75
發(fā)布日期：1995/8/15 12:00:00
實施日期：1995/8/15 12:00:00
中國標準分類號：M75
國際標準分類號：33.160.20
適用范圍：The object of this part of IEC 1079 is to define the conditions and methods of measure-ment to be applied to MAC/packet decoder units. The specifications of the limit values of the various parameters of the decoder are outside the scope of this part. This unit can either be connected to the output of a DBS tuner unit or be a part of it. The methods of measurement concerning the DBS tuner part are described in part 2 of IEC 1079. The input signal is a baseband video signal encoded according to one of the following MAC standards: - D-MAC/packet; - D2 MAC/packet. The output signals are: - red, green, blue colour signals (R.G.B); - one or more audio signal(s); - the composite synchronization signal. NOTE - The methods of measurement can also be used for MAC/packet receivers with built-in MAC decoder units if R.G.B output signals are available.