Frequency Plots
40% Fan Speed
50% Fan Speed
75% Fan Speed
100% Fan Speed
The loudest frequencies are in the 315 to 400 Hz region.
Signal Recordings – 40/50/75/100% Fan Speed
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.
40% Fan Speed
50% Fan Speed
75% Fan Speed
100% Fan Speed
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