5-10 PN: 10580-00321 Rev. M S331L UG
5-3 General Measurement Setup Internal Power Meter
4. Turn on the RF source of the Device Under Test or connect the
source from the test apparatus. The power meter will now display
the power level with the unwanted interference signal subtracted
out.
Note
If there is excessive signal present at the port during the
Zero Calibration (> –20 dBm), the following error message
is displayed “Signal too high. Zeroing not allowed!”
Figure 5-5. Zeroing Error Message