Configure Signal Bandwidth
- Updated2023-02-17
- 2 minute(s) read
Configure Signal Bandwidth
Configures the signal bandwidth of the arbitrary waveform.
The NI-RFSG device must be in the Configuration state before you call this node.
Inputs/Outputs
error in
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Default value: No error
signal bandwidth
Signal bandwidth used by NI-RFSG for generating an RF output signal.
session out
Reference to your instrument session passed to the next node.
error out
Error information.
The node produces this output according to standard error behavior.
Hardware Support
This node supports the following hardware:
- PXIe-5644/5645/5646
- PXIe-5673E
- PXIe-5820/5840
Examples
Search within the programming environment to access the following installed examples:
- RFSG Getting Started Script (Script)
- RFSG Arbitrary Waveform Generation (Arb)
NI-RFSG Signal Bandwidth Definition
NI-RFSG defines signal bandwidth as twice the maximum baseband signal deviation from 0 Hz. Usually, the baseband signal center frequency is 0 Hz. In such cases, the signal bandwidth is the baseband signal's minimum frequency subtracted from its maximum frequency, or fmax - fmin. NI-RFSG uses this value to optimally configure the center frequency of the upconverter to help minimize phase noise. The generated signal is not filtered to achieve the set bandwidth. However, specifying a bandwidth smaller than the actual bandwidth of the signal could potentially result in spectral distortion.