GB/T 32401-2015: Translated English of Chinese Standard. (GBT 32401-2015, GB/T32401-2015, GBT32401-2015): Technical requirements and measurement methods for VHF/UHF frequency band radio monitoring receiver
https://www.chinesestandard.net, 23. apr. 2018 - 40 sider
This standard specifies the general requirements for VHF/UHF frequency band radio monitoring receiver, as well as the main technical parameters, indicator requirements and test methods for electrical performance, electromagnetic compatibility, electrical safety, and environmental adaptability. This standard applies to VHF/UHF frequency band radio monitoring receiver.
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Electromagnetic compatibility test methods
Appendix A Normative Layout guidelines for test field and radiation tests
amplitude modulation audio analyzer automatic frequency control automatic gain control band radio monitoring bandwidth to 25 CHANGE the test CONNECT the test connection method shown continuous wave test demodulation sensitivity device as shown device under test expressed in dB fixed frequency monitoring frequency band radio frequency control AFC frequency f1 Frequency modulation frequency monitoring mode input signal level interference suppression ratio intermediate frequency ITU-T measuring antenna meet the requirements monitoring sensitivity noise floor output level output the standard port spurious emission radio monitoring receiver REPEAT the test requirements of GB/T resolution bandwidths greater result shall meet selected test frequency SET the radio SET the resolution SET the signal shown in Figure SINAD specified in 4.2 spectrum analyzer standard continuous wave standing wave ratio test device test field Test methods CONNECT test procedure test requirements test results third-order intercept point TURN VHF/UHF frequency band wave test signal