| 摘要 |
A system for measuring a multiport device connected to a network analyzer via a test-set comprising a multiport network analyzer; a test-set having multiple real switches wherein at least one set of real switches is capable of being connected together as needed between selection terminals; and a device for controlling the network analyzer and the test-set, wherein two or more predetermined real switches that have been connected together, including at least one real switch with an open terminal, are regarded as one imaginary switch, and the control device controls the selection status of the real switches related to the imaginary switch based on the combination of terminals to which electricity is to be conducted as instructed by the user for this imaginary switch.
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