starting with the radio results, creative director boulder media, what are the radars? are is a quarterly snapshot of radio stations so it tells you who's listening, what demographics, where people are listening, what they're listening on. older devices, modern devices or the internet. and it gives figures for every 15 minutes of every station in the uk. it's actually one of the biggest surveys in europe. they speak to around 20,000 to 25,000 people every quarter. and ask them what they listen to. people keep a diary and that can be on their phone, on their computer, or if they really want to, they can write it in a book, and they're given a week to fill that in and that all goes into the pot and is measured that way. this time round, they've added some electronic measurements so a few thousand people have got a special app on their phone that listens to audio and ideally listening to the same audio that the humans that have that phone in their pocket also are listening to. and so, they blend some of the data together to get a representation of what people are listening