6-6 PN: 10580-00321 Rev. M S331L UG
6-3 General Measurement Setup High Accuracy Power Meter
Changing the Display Units
The power meter scale can be displayed in dBm or Watts. Use the
following procedure to change the displayed units:
1. Press the Amplitude main menu key.
2. Press the Units submenu key and select the display units.
Displaying Relative Power
Use the following procedure to select Relative Power through the
Amplitude menu.
1. With the desired base power (reference) level connected to the
USB sensor, press the Amplitude main menu key.
2. Press the Relative submenu key. Note that the absolute value of
the measurement at the time the Relative key is pressed is shown
in yellow below the numerical display (see Figure 6-4
on page 6-7).
3. Any change in power will now be displayed relative to the set
reference level. Refer to the bottom image in Figure 6-4
on page 6-7.
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