Frequency Plots
10% Fan Speed
Ignore the peaks at 50 and 65 Hz because this is noise from the mains grid.
- Peak frequency: 5 KHz
25% Fan Speed
- Peak frequency: 400 Hz
50% Fan Speed
- Peak frequency: 400 Hz
- 2nd Peak frequency: 250 Hz
75% Fan Speed
- Peak frequency: 400 Hz
- 2nd Peak frequency: 315 Hz
100% Fan Speed
- Peak frequency: 400 Hz
Signal Recordings
I have recorded the signals shown above, but please keep in mind that I’ve enabled Automatic Gain Control (AGC) to do so to make it easier for you to reproduce them. The provided recordings are only offered for aural identification purposes.
10% Fan Speed
25% Fan Speed
50% Fan Speed
75% Fan Speed
100% Fan Speed
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