||Aerial Noise Monitoring Study, Volume 2: Operations Handbook.
Chanaud, R. C. ;
McGregor, Howard N. ;
||Engineering Dynamics, Inc., Denver, CO.;Environmental Protection Agency, Denver, CO. Region VIII.
Urban areas ;
Acoustic measurement ;
Airborne equipment ;
Telemetering equipment ;
Site surveys ;
Noise pollution ;
Acoustic measuring instruments ;
Tethered balloons ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
An aerial noise monitoring system was developed to measure the noise produced in communities. The system consists of a tethered helium filled balloon which lifts an F.M. telemetry sound measuring system to altitudes of 300 m. A ground station receiving the telemetry signal demodulates it so that the noise at the microphone can be heard and analyzed on the ground. Volume II is a handbook which presents operational procedures for the aerial monitoring system.