Ofcom are a communication regulator. They regulate fixed line telecoms, mobiles, postal services, plus the airwaves over which wireless devices operate. The operate under the communications Act 2003. Ofcom are funded by industry for regulating broadcasting and communications networks, and grant-in-aid from the Government.
and they influence radio and audio output by placing guidelines and polices. By doing this they are able to control what is seen or heard on the media.
Pre-watershed guidelines, no sexual, references, violence, explicit language and drug usage