Scope 1.1 Topic Content: This standard specifies the basic principles of testing methods for the electrical parameters of microwave amplifiers. 1.2 Scope of Application This standard is applicable to the electrical parameter testing of low noise amplifiers, power amplifiers, limiting amplifiers, controllable gain amplifiers, and pulse amplifiers. 2. Reference document SJ 20612-96 Microwave Circuit Parameter Text Symbols 3. Definition 3.1 Symbols The parameter symbols used in this standard comply with the provisions of SJ 20612-96. 4 General Requirements 4.1 Test conditions and environmental requirements should comply with the detailed product specifications. 4.2 The testing instruments should have the specified accuracy and pass the metrological verification. 4.3 The frequency range of the testing instrument should meet the testing requirements. The range of the power meter should meet the testing requirements. The attenuation amount of the 4.5 attenuator should meet the testing requirements. 4.6 If the signal source comes with an attenuator and meets the requirements, the variable attenuator in the test block diagram can be omitted. 4.7 During the test, connect the testing instrument according to the test diagram and preheat according to the operating requirements. During the testing period, the environmental conditions should be free from mechanical vibration and electromagnetic interference that affect the accuracy of the test results
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