CONTENTS Market Changes Conversion to PPM Service Enhancement Winter 2007 Response Rate and Sample Representation Initiatives Total Line Reporting Key Dates Station Information Updates During the Winter 2007 Survey Print-friendly version. More Survey Bulletins

Radio Presurvey Bulletin,
Winter 2007

Conversion to PPM

Effective Winter 2007, the Continuous-Measurement radio market below is being converted from diary measurement to electronic measurement using Arbitron’s Portable People Meter^TM (PPM^TM):  

Philadelphia

Audience estimates based on diary measurement will not be available for report periods after Fall 2006 in this market.