Promax AE-166 User Manual page 142

Operation
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Connect the cable that is to be connected to the DUT between the TG and
the other cable to the RF input.
Figure 101.
Press > More[F7] > P1dB[F4] > Normalize[F3].
Press Execute Norm[F3]. This will normalize the cable loss. The cable loss
will be shown in the Execute Norm icon.
Figure 102.
Next connect the DUT either directly to the TG or directly to the RF input.
The location of the DUT will determine whether the cable loss is
normalized before or after the DUT.
Connect the RF cable from the DUT to the either the TG or RF input,
depending on where the DUT was connected.
Location = Prev Location = Post
Figure 104.
Figure 103.
Set Location[F2] to either PREV or POST, depending on the location of
the DUT, as shown above.
Turn Norm.[F3] on.
The cable loss will now be normalized, based on where the DUT is
located.
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February 2017