I should really give this review 5 stars, as i spent the evening that i got these reading. Axpanding the mind or some such rubbish like that. I plugged this in to a TV with freeview with a very poor signal running off in indoor antenna. The TV did pick up the BBC channels well, and a few channels further down that nobody ever watches before i plugged the 'booster' in, but upon plugging this in it lost all the TV channels. So a signal booster actually did the oposite, it reduced the signal. To the point where no channels were available. I bought 2 (what an idiot!) so i thought i'd try the other one to make sure the first wasn't faulty (not that you can tell, no indication this is on, no switch or little red LED indicating power) And still the same.
Although we had an areal booster in our home it just wasn't doing the job so bought this and have it through our original booster and now perfect signal with no interference! How it would be on its own I don't know but for the price I'm very happy!