Another "vote" for Arbitron's electronic ratings service.
Entercom Communications Corp. , the Bala Cynwyd-based owner of 64 radio stations around the United States, has signed a contract to use the New York company Portable People Meter service that measures listenership.
While advertisers favor the electronic system over the traditional paper diaries, the system has been controversial. Radio station operators, especially those in large markets, have complained about both the size of the sample audiences being measured and their diversity.
People meters have been used in the Philadelphia market for more than a year. Entercom does not own any stations locally.
