Not sure anyone can answer this one but all suggestions welcome.I keep a digital radio in the MH and on some sites had a problem with reception so i ran a cable from the Tv booster ( which has a receptacle for radio).Great ,fantastic i have reception and all channels.However something i noticed at the weekend was that if the radio is on and i turn on the habitation light near the door i lose reception.The radio is still powered (230v) and display is still visible but no radio.The light switch is a double which serves the light above the habitation door and the main lights in the van.The other switch for the main lights doesn't affect it at all and neither do the led's.Acts well as a mute button but really dont need it.Any ideas ? cheers Dave.