Use the following procedure to select Relative Power through the Amplitude menu.
1. With the desired base power (reference) level connected to the input of your instrument, 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 (Figure: Relative Power Example).
3. Any change in power will now be displayed relative to the set reference level. Refer to the bottom image in Figure: Relative Power Example.
Relative Power Example
Note
Relative power is displayed numerically in dB and percentage, scale is absolute.
