1 thing you need to do before buying an antenna: Please visit "dtv.gov/map" or "antennaweb.org" first to check how many broadcast towers surrounding you within 50miles, and how many free High Definition TV broadcast channel they receive. 2 things you need to know while using it. Make sure your TV is built in Digital Terr.STB, or you need to connect with a outer Digital Terr.STB to watch HD channels. If it can not get any signal or the signal is weak, try to use the included amplifier. If the signal is good enough for HD channels, then leave the amplifier alone, or it may boost the interference. 3 things you need to do if the antenna is not working as expected. Check the antenna is correctly connected to your HDTV or 3rd party HD receiver. Set the mode to Antenna or Air in the TV's setup menu and re-scan for channels. Reposition the antenna in a different location. It is best to place the antenna in line of sight with the TV tower(s) and avoid obstructions. Warm tips--Hills, trees, and buildings deflect and weaken signals. The digital TV signal is a 'line of sight' signal. While signals pass through walls and other surfaces, the more obstructions the signal encounters, the weaker the signal and this causes signal disruption. The clearest, most unobstructed view to the broadcast towers will allow the antenna to perform at the highest level.
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