Transmission power control system.

摘要

A transmitting power control system comprises a first-mode arithmetic operation unit (7) for arithmetically obtaining an actual up-link rain attenuation amount based on a total rain degradation amount and a down-link rain attenuation amount and arithmetically operating a ratio of the actual up-link rain attenuation amount to the down-link rain attenuation amount, a measurement executable judgement unit (4) for judging whether or not the measurement is possible based on the originating station returning wave, and a second-mode arithmetic operation unit (8) connected to the first mode arithmetic operation unit (7) for presuming and arithmetically obtaining an up-link rain attenuation amount based on the actual rain attenuation amount ratio and the down-link rain attenuation amount by latching the rain attenuation amount ratio when the measurement executable judgement unit (4) judges that the measurement is impossible.