According to Inside Radio, Clear Channel, Cox, Cumulus, and Radio One have sent a letter to Arbitron demanding immediate action to fix problems with the People Meter. Inside Radio writes:
The four broadcast groups are demanding Arbitron formulate an action plan to solve PPM problems in the next 30 days. While remaining supporters of electronic measurement, they say "PPM has not provided accurate or reliable data for all demographic groups." The biggest issue is sample size, particularly among 18-34s, Blacks, and Hispanics. The four say "The situation is clear: To secure a legitimate representation of listener activity, the number of people participating in the PPM survey must be increased." They also blast an Arbitron proposal to lower the number of market-level respondents needed to issue a ratings report. They say the proposal is "dangerous" because it could result in some stations selling ad time against ratings based on a single listener.
The important point here is that these four groups are not critical of electronic measurement. They are critical of Arbitron's implementation of electronic measurement. It is in Arbitron's financial interest to maintain the smallest possible panel size that radio will accept. Arbitron will not increase panel sizes unless radio pressures them to do so.