Type: System.Int32Returns the status code of this method. The status code either indicates success or describes an error or warning condition.
This method maps to the RFmxInstr_SetFftWidth() function in C.
NOTE: The maximum FFT width for your device is constrained to 50 MHz or 25 MHz, depending on the digitizer option you purchased.
NOTE: You can use the FFT width method with in-band retuning. For more information about in-band retuning, refer to the SetDownconverterCenterFrequency method. The RF device treats the device instantaneous bandwidth as the effective real-time bandwidth of the signal path. The span specifies the frequency range of the computed spectrum. A vector signal analyzer can acquire a bandwidth only within the device instantaneous bandwidth frequency. If the span you choose is greater than the device instantaneous bandwidth, the RF device obtains multiple acquisitions and combines them into a single spectrum. By specifying the FFT width, you can control the specific bandwidth obtained in each signal acquisition.