The gadget, the Portable People Meter, contains motion detectors to make certain that someone is really wearing the device, and extra-sensitive microphones that pick up codes hidden in each program.

You've heard, by now, about Arbitron's new device for measuring radio listening: the portable people meter (PPM). It picks up electronically encoded signals from radio stations (even if they're ...

Nielsen on Thursday said that it will begin placing about 3,000 new Portable People Meter Wearables into use among its almost 60,000 active panelists used to measure audiences for the ratings company.

Arbitron Inc. is back on track to make its Portable People Meter system the standard measurement device for radio listening. But critics of the devices are no happier than they were in November ...

Next summer Arbitron will begin using electronic devices called Portable People Meters to measure the listening audience in Austin, instead of the current diary system. In markets where Arbitron ...

With Arbitron‘s new Portable People Meter (PPM) set to become New York radio’s official ratings system as of Oct. 8, some Hispanic and black radio operators are still concerned that PPM isn ...

Rolls out 'portable people meter.' By Mediaweek Making good on its word to forge ahead with a portable people meter-based radio ratings service, Arbitron announced Tuesday it would begin rolling ...

Upon review of the article, I immediately asked myself, “What does this mean for Arbitron’s Portable People Meter (PPM)?” and “Do these two services compete for the same market?” Arbitron’s PPM ...

Arbitron Co. has tapped David Forr to head encoding operations for its new Portable People Meter, which is being deployed in conjunction with Nielsen Media Research. As manager of encoding ...

In September, Nielsen will begin placing 3,000 new Portable People Meter Wearables in its pool of active PPM panelists. “PPM Wearables feature an updated design that is smaller and more aligned with ...

Arbitron Co. has tapped David Forr to head encoding operations for its new Portable People Meter, which is being deployed in conjunction with Nielsen Media Research. As manager of encoding ...