This will save you some money on an antenna but you still need the box if your tv doesn’t have a digital atsc/qam tuner.
I actually built one of those before the digital switch and worked great but since the switch I had to go purchase me a powered antenna. Reason being, as I have been told, is that before the switch stations used the power they provided for the analog signal for the digital signal as well. Since most analog channels required more power the digital signals were of course stronger. So when the switch began all of the stations by law were held to a certain power level. So I had to get a stronger antenna.
I MUST purchase a powered antenna?
(I have another TV that I bought a digital (powered) antenna and it works so-so ... perhaps because I am not using an outside, (high ?) antenna in my rural SW Pa. location?)
I get 5 channels .. 7.1, 7.2 ... 9,1, 9.2 and 9.3