Need help with FFT

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polywave
Newbie
Posts: 1
Joined: Sun Apr 12, 2020 5:43 pm

Need help with FFT

Post by polywave »

Hi Everyone,
I am new to PicoScope and just purchased my first Pico 2206B. I hooked one of the input channels to the AWG output using a probe and set the AWG to 1Khz Sine. I then went into Spectral mode. For some reason I get two very different FFTs depending on whether I use a 10Khz bandwidth, or 20Khz bandwidth.
Can someone please tell me what I'm doing wrong?
Thank You,
Polywave

I tried to attach pictures of both scenarios but am not sure they are attached.
20Khz FFT Bandwidth 20200412-0003.psdata
20Khz FFT Bandwidth 20200412-0003.psdata
Attachments
20Khz FFT Bandwidth 20200412-0003.psdata
(152.62 KiB) Downloaded 376 times
10Khz FFT Bandwidth 20200412-0002.psdata
(135.78 KiB) Downloaded 393 times
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