| 1. | By building the antenna at a location with a poor effective conductivity of the ground , and by grounding the ends of the feedline / antenna , the signal is forced deep down into the earth , making the earth itself the effective radiating element 通过将天线建造在低导电性的地点,并且将馈线/天线的终端接地,信号被迫深入地球,使得地球本身成为一个有效的辐射单元。 |