High Quality Content by WIKIPEDIA articles! Radio Northland was a radio station in Whangarei on 1026AM, Kaikohe on 1215AM and Kaitaia on 1026AM, before it was rebranded as Classic Hits FM in 1993 and Newstalk ZB in 2001 & 2005. Radio broadcasting is an audio (sound) broadcasting service, broadcast through the air as radio waves (a form of electromagnetic radiation) from a transmitter to a receiving antenna. Stations can be linked in radio networks to broadcast common programming, either in syndication or simulcast or both. Audio broadcasting also can be done via cable FM, local wire networks, satellite and the Internet.