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邻居买了一台14英寸彩电,用室内羊角天线接收电视信号效果不好,要架室外天线。老张问我:“架设室外天线是不是越高越好?”我告诉他:一般来说,室外天线架得高,接收的信号强,收看效果好。这是因为地球是呈椭园形的,电视电波传播时会受到地球弧面的影响,以及高大建筑、大山、树木等障碍物的阻挡,这样使电视天线接收信号的距离受到
Neighbors bought a 14-inch color TV, indoor claw antenna TV signal reception is not good, to be outdoor antenna. Lao Zhang asked me: “I set the outdoor antenna is not the higher the better?” I told him: In general, the outdoor antenna rack is high, the signal received is strong, watching the effect is good. This is because the earth is oval-shaped, the TV radio waves will be affected by the impact of the earth’s arc, as well as obstacles such as tall buildings, mountains, trees and other obstructions, so that the receiving distance of the television antenna is affected