There are indoor and outdoor antennas where the indoor antennas are very small and need to be placed near or on the TV for better picture. Outdoor antennas are placed on the roof and the quality of the image depends on antenna surface. Larger the antenna surface, better is the quality. The strength is calculated in dB and higher the dB , higher is the strength.
Using amplification is also a better idea on the indoor antenna or placing it separately for a good picture quality. This is used between the digital antenna and TV but only if it is required as it can cause unnecessary noise.
Over the air reception
Digital TV broadcasting has enhanced picture quality and eliminated the picture distortions. With the help of digital TV signals whether of high or low definition, it is easier to see clear images or no image at all. Contact professional digital TV antenna if interested to have it installed in your home.
Using an off antenna is better to the TV sources. As local digital TV broadcast is everywhere, selecting one digital station where you can get more than 4 to 5 stations is a good option.
Using cable and satellite for enjoying millions of channels which make use of data compression or other techniques results in unclear picture, annoying distortions, etc. Therefore using the off air reception is a good way to enjoy the clarity of images and watching the television in high resolution. Moreover, over the air signals are free to enjoy better image clarity.