LNA measurement methods National Standard of the People\'s Republic of China Measurement methods for radio equipment of satellite communication earth stations Part 2: Subsystem measurements 1.1.1 GB 112 99 7 18 9r : 2.1.1 GB 112 99 7 18 9r : 2.1.1 e n t 2 : S u b - s y s t e ms me a s u r e me n t s S e c t i o n T h r e e - L o w n o i s e a r t 2 : S u b - s y s t e ms me a s u r e me n t s S e c t i o n T h r e e - L o w n o i s e a This standard is one of the series of standards for \"Measurement methods for radio equipment of satellite communication earth stations\". 1 Subject content and scope of application This standard specifies the electrical performance measurement methods of low noise amplifiers and low noise assemblies LNB (Low Noise Bloc) installed behind the antenna of satellite communication earth stations. The measurement items are not necessarily limited to the contents of this standard. When additional measurements are required, they should be agreed upon by the relevant parties. 2 Overview The input and output ports of the amplifier must be indicated. Any auxiliary networks, such as RF filters, RF switches or directional couplers, must also be described. The interfaces of these subsystems...
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