cert_exam:tech_radio_op_1:b:freq:h-free_space_propagation
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自由空間伝搬損と送受信点間距離
自由空間の伝搬損Lは
\[ L = (\frac{4 \pi d }{\lambda})^2 \]
出題履歴
- H28/1 A14
- H29/7 A14
- R1/7 A14
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