IVIPWRMETER_ATTR_OFFSET
IviPwrMeterBase Attribute
| Data type |
Access | Applies to | Coercion | High Level Functions |
|---|---|---|---|---|
| ViReal64 | R/W | Channels | None | IviPwrMeter_ConfigureOffset |
Description
This channel-based attribute specifies an offset to be added to the measured value on a channel in units of dB. This attribute can be used to compensate for system losses or gains between the unit under test and the sensor of the power meter.
A positive value is used for loss compensation. A negative value is used for gain compensation. For example, a cable loss of 2 dB could be compensated for by setting this attribute to +2. Similarly, a gain stage of 10 dB could be accounted for by setting the value of this attribute to -10. In both cases, the reading from the power meter will indicate the power at the unit under test rather than power at the power meter's sensor.