I had been using an indoor antenna for my bedroom Sony that received at most 23 channels, usually 19 and changing constantly. I hoped this antenna would give me steady reception of the Phoenix network stations. I mounted it on the same mast as the old antenna hooked up to my living room antenna which gets 48 channels, adding a 5' section of 1" pipe. After completion of the installation, I turned the control box on and started the auto program function on the Sony. Almost immediately it started to find stations. I couldn't believed how many it was adding up. By the time the progress bar got to the end, it had found 85 stations. I checked out each and every station, whether 1080i, 720p or 480p, they all were perfect pictures. A majority would still come in even if I turned off the preamp. I'm about 70 miles SE of Phoenix and 50 miles NW of Tucson. If I rotate the antenna 180 degrees, I can probably add 15-20 more channels from the Tucson area, giving me over 100 channels with this wonder of an antenna. The above ground height is approximately 25 feet. You can't go wrong, especially for this price.