Londoners got a big digital radio boost this week with the switching on of landmark new digital radio transmitters on the BT Tower.

Olympic gold medal winner Dame Kelly Holmes and Colin Murray switched on the new digital radio transmitters, which together with three recent landmark transmitters around London, give a stronger digital signal to over 9 million listeners and deliver digital radio to nearly one million Londoners for the first time.

This collaboration, between the broadcasters, multiplex operators, Arqiva, and BT Wholesale, is the culmination of a two-year programme of investment in digital transmitters around London.

There's good news for car drivers and commuters too. For them the boost means a robust digital radio signal on 99% of the London road network within the M25, including the Olympic Route Network.

London leads the UK in the take-up of digital radio, with 56% of all radio listeners listening to digital radio, and 35% of all radio listening on a digital platform. Digital listening in London has been growing at a rate of over 23% per year, and if maintained will rise to 50% of all listening by mid-2014.

With 64 stations available on digital radio in London, and 37 of them digital-only, listeners should use the postcode checker at getdigitalradio.com to see what stations they can get in their area.

Ford Ennals, CEO of Digital Radio UK, says: "Londoners love digital radio with over half of all adults listening to digital radio every week. With the London signal boost there's never been a better time to get digital radio in London."