Configuration:Gain Property

NI-USRP Help

Edition Date: March 2018

Part Number: 373380J-01

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Short Name: Gain

Property of niUSRP

Specifies the gain, in dB, applied to the RF signal for receive (Rx) and transmit (Tx) signals.

Gain represents the total aggregate gain applied to the signal throughout the signal path.

Note  The USRP devices are not calibrated. The gain value does not represent an absolute gain and does not have linear behavior. Different devices exhibit different gain curves for different carrier frequencies. You may need to experiment to determine the correct gain setting for your application.

The range of available values is hardware dependent. If you specify a value outside the range supported by your device, NI-USRP coerces the value to the nearest supported value. Writing to this property specifies the value you want to use. Reading from this property returns the actual value, which may have been coerced to the capabilities of the device. NI recommends that you read the value after you write to this property to determine the actual setting for the device.

Remarks

The following table lists the characteristics of this property.

Datatype fD
PermissionsRead/Write
High-level VIs niUSRP Configure Signal
Channel-based Yes
ResettableYes

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