NIRFSA_ATTR_REFERENCE_LEVEL_HEADROOM
- Updated2024-05-08
- 1 minute(s) read
NIRFSA_ATTR_REFERENCE_LEVEL_HEADROOM
Specific Attribute
| Data type |
Access | High Level Functions |
|---|---|---|
| ViReal64 | R/W | None |
Description
Specifies the margin NI-RFSA adds to the NIRFSA_ATTR_REFERENCE_LEVEL attribute. The margin helps to avoid clipping and overflow warnings if the input signal exceeds the configured reference level.
NI-RFSA configures the input gain to avoid clipping and associated overflow warnings as long as the instantaneous power of the input signal remains within the reference level plus the reference level headroom. If you know the input power of the signal precisely or have already included margin in the reference level, you may be able to improve the signal-to-noise ratio by reducing the reference level headroom.
Units: dB
Default Value:
PXIe-5830/5831/5832/5841: 1 dB
PXIe-5840: 0 dB
Supported Devices: PXIe-5830/5831/5832/5840/5841