A very good quality self contained tv set top aerial suitbale for all current digital broadcsts and freeview channels dual voltage loop antenna compatible with dvb t freeview and similar digital terrestrial broadcasts and vhf broadcasts the product features adjustable loop antenna two telescopic adjustable antennae variable gain signal booster 12 v external input psu not supplied external 75 ohm coaxial input for use with external roof mount aerials and built in mains lead