[elgemcdlf]

Have no idea what receiver you have but does it have a source button on the remote or a TV/Sat button? Try that. Also look for a radio button. Perhaps you tripped it over to radio. Source & TV/Sat are the same thing in concept. They change the input port on the receiver from the lnbf in to the ant in port and back again. If you have nothing connected to the ant in that could explain what you have presently. Since I do not know your receiver I assume it does radio since every DVB FTA receiver I am familiar with does. Every one I have used has a screen display though when in radio mode. Perhaps yours does not.