cert_exam:tech_radio_op_1:b:freq:h-reception_capability
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| cert_exam:tech_radio_op_1:b:freq:h-reception_capability [2019/12/23 20:29] – [アンテナの指向性、利得、受信電力] fu | cert_exam:tech_radio_op_1:b:freq:h-reception_capability [2019/12/23 20:30] (current) – fu | ||
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| * 同じアンテナを複数並べた時の指向性は，アンテナ単体の指向性に配列指向係数をかけたものとなる | * 同じアンテナを複数並べた時の指向性は，アンテナ単体の指向性に配列指向係数をかけたものとなる | ||
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| + | 注意：dBの値と，真数の倍率が入れ替えて出題されることが多いようなので，数値をしっかり覚えておく | ||
| ===== 出題履歴 ===== | ===== 出題履歴 ===== | ||
cert_exam/tech_radio_op_1/b/freq/h-reception_capability.1577100549.txt.gz · Last modified: by fu