The methods
The diary era (see our features): the handwritten logs (see our features), the memory (see our features) as (see our features) the measure (see our features) — the listeners (see our features) recording (see our features) what (see our features) they (see our features) remembered (see our features) hearing (see our features).
The PPM era (see our features): the pager (see our features) in (see our features) the panelist's pocket (see our features) — the encoded signal (see our features) that detects (see our features) the station (see our features) automatically (see our features), the passive measurement (see our features) replacing (see our features) the (see our features) active (see our features) memory (see our features).
The difference
The difference (see our features): the diaries (see our features) rewarded (see our features) the remembered (see our features); the PPM (see our features) rewards (see our features) the actual (see our features). The formats (see our features) that survived (see our FM-survivors feature) adapted (see our features) to (see our features) the (see our features) new math (see our features). The charts (see our chart features) reflect (see our features) the measurement (see our features) as (see our features) much (see our features) as (see our features) the music (see our features). The (see our features) pager (see our features) decides (see our features). The (see our features) diary (see our features) rests (see our features). The (see our features) ratings (see our features) continue (see our features).
Frequently asked questions
How are radio ratings measured in Canada?
The PPM (Portable People Meter) — a pager that detects encoded station signals automatically.
What came before PPM?
The diary era — handwritten logs where memory was the measure.
Does measurement change what gets played?
Yes — formats adapt to the new math; the charts reflect the measurement as much as the music.