Patent ID: 7348784

Claim:
An error factor acquisition device that acquires an error factor between a device under test and a network analyzer having a signal output unit, an output port that outputs a signal supplied from the signal output unit, and a reception port that receives the signal, said error factor acquisition device comprising: a first calibrator that includes a first state realization unit that realizes a first state for the output port and the reception port of the network analyzer, and is connected to the output port and the reception port; and a second calibrator that includes a second state realization unit that realizes a second state for the output port and the reception port of the network analyzer, and is connected to said first calibrator and the device under test, wherein: said first calibrator includes a first connection unit that connects the output port and the reception port either to said first state realization unit or said second calibrator; and said second calibrator includes a second connection unit that connects the output port and the reception port either to said second state realization unit or the device under test.