This Recommendation describes a method for point-to-area radio propagation predictions for terrestrial services in the frequency range 30 MHz to 3 000 MHz. It is intended for use on tropospheric radio circuits over land paths, sea paths and/or mixed land-sea paths up to 1 000 km length for effective transmitting antenna heights less than 3 000 m. The method is based on interpolation/extrapolation from empirically derived field-strength curves as functions of distance, antenna height, frequency and percentage time. The calculation procedure also includes corrections to the results obtained from this interpolation/extrapolation to account for terrain clearance and terminal clutter obstructions.
ITU-R P.1546-5-2013由国际电信联盟 IX-ITU 发布于 2013-09-01。
ITU-R P.1546-5-2013 在中国标准分类中归属于: M30 通信设备综合。
* 在 ITU-R P.1546-5-2013 发布之后有更新,请注意新发布标准的变化。
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