Do you have the main dial on 70 or 80 dB's? Do you have it on "slow" speed and "C" weighting?

My guess is that the pink noise (test tones) was not loud enough to register on the meter. That is why you have to adjust the dB levels with your remote at the same time "up" until you start seeing the needle recognize the noise.

It would be just like if you set the dial on say 100dB and talked at a soft voice, the meter won't move until you yell.

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