AC SERIES/CHALLENGER/DEFENDER/AMERICAN COACH

IC Bus/Champion Bus, Inc./General Coach American, Inc. Pdf Download PDF Report

Interior Noise Test Data Form

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

Date 2011-08-08
Personnel E.D., E.L. & B.L.
Temperature (°F) 74
Humidity (%) 79
Wind Direction NW
Wind Speed (MPH) 5
Barometric Pressure (in.Hg) 29.76
Initial Sound Level Meter Calibration checked by E.D.
Interior Ambient Noise Level dB(A) 34.0
Exterior Ambient Noise Level dB(A) 49.0
Microphone Height During Testing(in) 29
Measurement Location Measured Sound Level dB(A)
Driver's Seat 48.9
Front Passenger Seats 47.3
In Line with Front Speaker 48.9
In Line with Middle Speaker 46.0
In Line with Rear Speaker 45.7
Rear Passenger Seats 45.0
Final Sound Level Meter Calibration checked by E.D.
Comments
<p>All readings taken in center aisle.</p>