PXI-6722 sweep frequency step=1Hz

[mason0422]

Hi,

Does anyone use PXI-6722 to output sine wave under the below condition?

sweep frequency range : 18~20KHz

frequency resolution : 1Hz

My question is when I add 1Hz and the output signal doesn't add 1Hz, sometimes add 100Hz, sometimes add 200Hz.

Thanks

Mason

[santo_13]

Please share the code you use to generate the sweep and scope captures of the generated signal.

[mason0422]

Hi Santhosh,

Please see the attached file.

Thanks

[santo_13]

1. That is NOT the best way to generate a Sine signal
   • Use the highest ever sampling rate available and generate the signal (the task test panel is not the best way to validate this)
2. Sampling rates are discrete, please refer to your device specification.