Скачать или смотреть COAT HANGER TV ANTENNA VS THE ULTIMATE TV ANTENNA

I made this coat hanger tv antenna. i wanted to see how it would stack up against the ultimate antenna.The switch to digital TV broadcasting has eliminated the most annoying picture distortions snow and ghosting that made analog off-air reception so hit-or-miss. With digital TV signals both standard-definition and high-definition, you'll either see a crisp, ghost-free picture or no picture at all. Because local and syndicated programming may not be in high-definition, it's typical for local stations to broadcast their digital signals in standard-definition during the day, then switch to full widescreen HDTV during primetime. ocal digital TV broadcasts are everywhere: Although the widest selection of digital TV broadcasts are found in big cities, over 99% of U.S. TV households have access to at least one local digital station; 89% can get five or more stations. You can learn which stations in your area are providing digital broadcasts by visiting the TV Fool website listed below Over-the-air digital reception provides the best picture quality: Cable and satellite providers offer tons of channels, but to do this they use data compression or other techniques that compromise picture quality, resulting in a "soft" image, distracting video artifacts (distortion), or both. Off-air antenna reception is the best way to enjoy HDTV programs at the full resolution the TV networks intended.Over-the-air signals are free: Aside from the costs to purchase and install an HD antenna, receiving over-the-air HDTV is free.Access to all your local channels: Cable and satellite TV providers may not carry all the local channels in your area, or may not offer them in high definition. Also, contract disagreements between local cable operators and local broadcasters can mean that major networks may not be available via cable TV in your area.Access to out-of-town channels: With the right equipment and reception conditions, some viewers may even be able to receive out-of-town channels, some of which may carry sports programs that are locally blacked out. TV signal transmission is considered to be "line of sight." Getting reliable DTV reception beyond the curvature of the earth (approximately 70 miles) is difficult. And if mountains or tall buildings lie between the transmitter towers and your home, they can cause reception problems. So, the first step is to locate the transmitters for your local stations. There is no one magic antenna or antenna type that will deliver excellent TV reception in every location. The main factors determining reception are the distance and direction from the TV station transmitters to your home. Other factors include the transmitter's power and the height of its tower, the terrain between the tower and your antenna, and the size and location of any large buildings in the path of the transmission. If you live within a few miles of the transmitter, and the signal path is relatively unobstructed, you may be able to get adequate reception using a small set-top indoor antenna. But as you move farther away, getting usable signal strength becomes trickier. This is where careful antenna selection and installation become essential. Indoor antennas are generally small, designed to be placed on or near your TV. Outdoor antennas tend to be significantly larger and are intended for roof- or attic-mounting. In general, the larger an antenna's surface area is, the stronger the signal it will provide. The relative strength of the signal an antenna can deliver to a tuner is referred to as "gain" and is measured in decibels (dB). The higher the dB rating, the greater the gain. When you're aiming the antenna, use a compass to ensure your antenna is accurately and precisely oriented toward the signal source. I Cut apart four wire coat hangers above to obtain eight V shaped
pieces of wire, each side of the V being 8 inches long with a three inch opening. Remove any paint or varnish at the bottom of the V so they’ll make good electrical contact. Cut apart two coat hangers to obtain 2 wires, 22 inches long. Attach the wire pieces as shown, bending the wire to make good electrical contact with the screw heads. Note how the straight wires cross back and forth between the screws, Attach the matching transformer to the center two connections to the antenna. Television signals are strongest when a station’s tower can transmit its signal in a straight line to your antenna, unobscured by buildings or trees. Also, signals from close stations are stronger than those from distant stations because signals grow weaker as they travel farther.There’s little you can do about the placement of your house in regard to the location of the television transmitter. But you can use an antenna with better “gain.” Gain is a measure fan antenna’s ability to pick up signals.