
HAM-L2_501_600+
Authored by Chaucer Sung
Other
12th Grade

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106 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
154. 下列哪一項能增加八木天線的頻寬?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
155. 八木天線的驅動元件(driven element)的長度大概是多少?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
156. 關於三元件、單頻段八木天線的敘述何者為真?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
157. 關於三元件、單頻段八木天線的敘述何者為真?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
158. 增長龍骨(boom)長度跟增加引向器的數量會對八木天線產生怎麼樣的影響?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
159. 假設兩元件方形天線的其中一個元件作為反射器,迴圈如何配置才可以成為定向天線?。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
160. 對八木天線來說「前後比」的意思是什麼?.
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