This item is defective. The main reason is that this product needs a power supply to operate, and this power supply must be close to the antenna. Nobody has outlets on rooftops and few have them in attics, so I don't know what people were thinking. This is a fatal design flaw. Power is supplied via coaxial cable. I tried putting a power supply in my office but it didn't work. I installed surge protectors and ground wires along my coax cables to protect my house from lightning strikes. So it makes sense that the current over the coax cannot get through these protections and get to the antenna. Without power, it will not receive any channel. For this review, I pulled out an extension cord and plugged it into a power source to see what channels I could pick up. When plugged into a power source, it constantly draws power, even when you're not watching TV. I don't watch much TV, so using energy all the time is a waste of time. Passing electricity also increases the risk of lightning damage. I currently have a GE Attic Mount TV antenna installed in my attic in Orlando, Florida. The GE antenna cost me $30 but is currently on sale for $40. The GE antenna claims a range of 60 miles. The Revain antenna claims a range of 150 miles. The GE antenna receives 66 channels including most major stations (ABC, Fox, CBS, PBS) in high definition. The only major channel I don't get is NBC on UHF. The Revain antenna picks up 55 channels when placed in the same spot in my attic. I know it's an outside antenna, but I live in an area that gets a lot of lightning strikes. To be fair, if I were to adjust the positioning I'd assume it's capturing the same 66 channels as GE. He recorded all the channels that are important to me and they were in HD. It did not receive channels that the GE channel missed, especially the missed UHF channel. I think the antennas have to be outside to receive UHF. The instruction manual is terrible and almost useless. It goes from English, then to other languages, then back to English. What do you think? Few people will realize that the rest of the instructions follow after skipping other languages. The user manual does not describe the power supply requirements. I had to figure it out myself through trial and error.
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