内部含有电台测量所需的各种测量功能，利用提供的选件还可扩大它的使用范围至相应的测量领域，它不仅可以满足电台测量的所有要求，也可做某些特殊功能测试。-internal measurement for radio with the various measurements, the use of options also expand its scope to the corresponding measurement field, it not only meets all the radio m