CD-291

CHAMPION BUS INC.

Interior Noise Test Data Form

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

Date 1994-09-21
Personnel R.L. & B.R.
Temperature (°F) 74
Humidity (%) 65
Wind Direction SSW
Wind Speed (MPH) 6
Barometric Pressure (in.Hg) 30.05
Initial Sound Level Meter Calibration checked by R.L.
Interior Ambient Noise Level dB(A) 34.2
Exterior Ambient Noise Level dB(A) 49.9
Microphone Height During Testing(in) 45
Measurement Location Measured Sound Level dB(A)
Driver's Seat 49.1
Front Passenger Seats 49.8
In Line with Front Speaker 52.6
In Line with Middle Speaker 50.6
In Line with Rear Speaker 51.5
Rear Passenger Seats 49.4
Final Sound Level Meter Calibration checked by R.L.
Comments
All readings taken in the center aisle.