Defender/Challenger/American Coach F-550 CNG

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Interior Noise Test Data Form

Test Condition 1: 80 dB(A) Stationary White Noise

Date 2012-05-04
Personnel E.D. & E.L.
Temperature (°F) 74
Humidity (%) 71
Wind Direction W
Wind Speed (MPH) 2
Barometric Pressure (in.Hg) 30.03
Initial Sound Level Meter Calibration checked by E.D.
Interior Ambient Noise Level dB(A) 30.0
Exterior Ambient Noise Level dB(A) 44.6
Microphone Height During Testing(in) 29
Measurement Location Measured Sound Level dB(A)
Driver's Seat 44.3
Front Passenger Seats 45.6
In Line with Front Speaker 44.9
In Line with Middle Speaker 46.1
In Line with Rear Speaker 46.0
Rear Passenger Seats 45.6
Final Sound Level Meter Calibration checked by E.D.
Comments
<p>All readings taken in the center aisle.</p>