RAJAR stands for Radio Joint Audience Research and is the official body in charge of measuring radio audiences in the UK. It is jointly owned by the BBC and the RadioCentre on behalf of the commercial sector.
There are currently approximately 310 individual stations on the survey and results are published every quarter.
This insightful assessment frames how Joint Industry audience surveys and direct user generated data is complementary when properly managed
RAJAR measures live radio listening in the UK and recruits roughly 100,000 respondents per year. The Diary is still a proven method of measurement, it has strengths and weaknesses like any other methodology in research but please continue to read the above thought piece to gain insight into why we believe that it's still the most effective method for us