Measurement noise level world championship sidecarcross

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markot
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Measurement noise level world championship sidecarcross

Post by markot »

Hello, who can tell me the distance and how many rpm is made to test the exhaust noise to the world championship sidecarcross?
I found only an indication of the maximum (94+2 dB/A for 4 stroke - 96+2 dB/A for 2 stroke), but not the method of measurement.
Thank you very much
Marco
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