America’s largest radio network, Clear Channel, has chosen Fox News Radio to provide national news for most of its news and talk stations in deal expected to nearly double Fox’s radio presence.

While Fox has developed a strong tv news service in recent years with its conservative approach to news reporting, it has until now been slow off the mark with the radio version of that service, which was launched over a year ago.

No terms of the five-year cash deal were disclosed, but News Corp’s Fox says its radio service could have more than 500 affiliates by the middle of next year if all contract options are exercised.

Stations are expected to move form their present 1 minute service to Fox’s 5 minute bulletin.

The deal helps Fox News compete with more-established radio news providers, including ABC Radio and CBS Radio.

Fox News will air on many of Clear Channel’s most prominent news and talk stations, including those in Los Angeles, Phoenix, Atlanta and San Diego.

As part of the deal, Fox News Radio will have access to news produced by local reporters for Clear Channel stations around the country.

Clear Channel Radio CEO John Hogan says local stations will now get higher quality national news.