Specifies the step size for the RF attenuation level. This value is expressed in dB. The actual RF attenuation is coerced up to the next highest multiple of the specified step size. If the mechanical attenuators are not available to implement the coerced RF attenuation, the solid state attenuators are used.

You do not need to use a selector string if you want to configure this property for all signal instances. Specify the signal name in the selector string if you want to configure or read that signal instance. Refer to the Selector Strings topic for information about the string syntax.

Default values:
PXIe-5601/5663/5663E 0.0
PXIe-5603/5665 (3.6 GHz) 1.0
PXIe-5605/5665 (14 GHz), PXIe-5606/5668 5.0
Valid values:
PXIe-5601/5663/5663E 0.0 to 93.0, continuous
PXIe-5603/5665 (3.6 GHz) 1.0 to 74.0, in 1 dB steps
PXIe-5605/5665 (14 GHz) (low band), PXIe-5606/5668 (low band) 1.0 to 106.0, in 1 dB steps
PXIe-5605/5665 (14 GHz) (high band), PXIe-5606/5668 (high band) 5.0 to 75.0, in 5 dB steps

Supported devices: PXIe-5663, PXIe-5665, PXIe-5668

Remarks

The following table lists the characteristics of this property.

Short Name RF Attenuation Step Size (dB)
Data type cdbl.png
Permissions Read/Write
High-level VIs N/A
Resettable Yes