This is a vertical slider which can be used to increase or decrease the value of the sequence parameter for expected power.
This parameter specifies the expected power level from the DUT output, in dBm. The value entered here is used by the Basic Transmit Power measurement to verify that the received power is nominally the same as the value specified in this parameter (upper and lower limits for DUT output power can be specified as part of the Basic Transmit Power setup). This parameter is also used when the sequence is validated in the test set.
Note: The value selected here should not be in conflict with the instrument gain value that was chosen for the acquisition; see Instr. Gain for information about the relationship between these two values.
As you move the slider up and down, the value in the Expected Power column of the analysis step table increases or decreases accordingly. At the same time, the blue bar representing the analysis interval in the graph moves up and down to reflect the changing value. (The same adjustment can be made by clicking in the middle of the blue bar on the graph, and dragging it up or down.)
If there are multiple rows in the analysis step table, this power adjustment applies only to the row that is highlighted. To make the same adjustment to a different analysis interval, click on a different row to highlight it.