The phrase "a radio caught" is correct and usable in written English.
It can be used in contexts where something was captured or received by a radio, such as a signal or transmission.
Example: "As I was driving, a radio caught an unexpected broadcast that piqued my interest."
Alternatives: "a radio picked up" or "a radio received".
Michael J. Schewel, the secretary of commerce and trade for the commonwealth of Virginia, was driving to work one morning when a news report on the radio caught his attention: Michael R. Bloomberg, the mayor of New York, was proposing to further toughen his city's antismoking law.
Youth Radio caught up with Scott Olsen, 25, at today's Occupy Oakland rally in Frank Ogawa Plaza.
Also on the radio, catch up with England's women footballers after their magnificent run at the World Cup in England's Lionesses (today, 5 Live, 10am).
If you're interested in discovering the best new music long before radio catches wind of it, both from Northern Ireland and further afield, then the Metaphorical Boat is the place for you.
Shukrullah Durani, the governor of Mohmand Dara, said the five men had been carrying an AK-47 assault rifle, hand grenades, a pistol and a radio when caught about 4 30 p.m.
Early in the siege, an intercepted radio message caught the general ordering one of his commanders to "burn" the city.
Vlautin left and, on the drive home, caught a radio show about soldiers returning home from conflict with brain injuries.
Getting ready for work this week, as I grabbed my stethoscope and NHS badge, I caught a radio discussion on the latest crisis in accident and emergency wards and all I could do was shrug in resignation.
Patten said he was a regular listener of Today on Radio 4, as well as Radio 3, but only caught Radio 1 when he trying to change channels between the speech and classical music station.
Radio got caught up in the BBC trust debacle when it was revealed that BBC 6 Music had suggested that recorded listener calls on the Liz Kershaw weekend breakfast show were live.
