释义 |
mountain effect mountain effect[′mau̇nt·ən i‚fekt] (electromagnetism) The effect of rough terrain on radio-wave propagation, causing reflections that produce errors in radio direction-finder indications. mountain effectAn error in a radio direction finder caused by radio waves being reflected from the surface of a mountain, which may cause a direction-finding needle to fluctuate or give erroneous readings. The error is predominant when an aircraft is flying over mountains. |