SENTRY

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Exterior Noise Test

Accelerating from Constant Speed

Date : 1997-06-27
Personnel : S.C. and B.B.
Temperature (°F) : 79 Humidity (%) : 36
Wind Speed (mph) : calm Wind Direction : calm
Barometric Pressure (in.Hg) : 30.18
Verify that microphone height is 4 feet, wind speed is less than 12 mpg and ambient temperature is between 30 F and 90 F: true checked by S.C.
Initial Sound Level Meter Calibration: false checked by S.C.
Exterior Ambient Noise Level dB(A): 50.1

Accelerating from Constant Speed
Curb (Right) Side
Accelerating from Constant Speed
Street (Left) Side
Run # Measured Noise Level dB(A) Run # Measured Noise Level dB(A)
1 73.6 1 77.4
2 73.4 2 78.0
3 73.9 3 77.6
4 73.7 4 78.1
5 73.5 5 78.1
Average of two highest actual noise levels = 73.8 dB(A) Average of two highest actual noise levels = 78.1 dB(A)