Broadcast (передача информации по радио либо просто глагол передавать инфу), announcer (диктор), on air (в эфире), radio set (радиоприемник), radio wave (радиоволна), radio station (радиостанция)
1) The announcer of my favourite radio station has got a very nice voice.
2) I like to listen to this radio station because I always can hear about latest news on air.
3) My mom was listening to the radio set while she was cooking at the kitchen.