Your local network stations, even though they are 20 miles away (with two exceptions), are all pretty strong. After that, there are three translators of moderate strength and then things fall off quickly. An indoor antenna can work (that's what the color scheme implies), as it is cost prohibitive to go for the very weak stuff. You need both UHF and VHF capability (see the real channel column). The most recommended indoor antenna for this situation is the Terk HDTVi - the NON-amplified version. If the HDTVa is the only one available, be sure to operate it with the amplifier switched off.
For digital reception, a pre-amp only overcomes the loss in the cable between antenna and receiver. Typically, it takes 50 feet of cable to lose enough signal to make the use of a pre-amp worthwhile. That means amps in indoor antennas are generally useless.
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