DMM Settings—Math
Click the other tabs in this figure for more information.
To configure IVI Soft Front Panels—DMM, select Edit»General Settings.
To activate these calculations, click the Math buttons on the front panel.
| MX + B | Manipulates normal display readings (X) mathematically according to the calculation Y = MX + B. X is the normal display reading. Multiplier (M) is the constant you define for multiplier, B is the constant you define for offset, and Y is the result that displays. |
| dB, %Ref | The reference value used for decibels (dB) and percent calculations. |
| dBm Zref | The reference value used for dBm calculations.
When you click the dBm calculation button in the front panel, IVI Soft Front Panels—DMM calculates power in dBm using the input voltage reading and the Zref value you specify. The relationship between dBm, a reference impedance, and the voltage is defined by the following equation:
(Vin^2 / Zref) |