
HAM-L2_301_400
Quiz
•
Other
•
12th Grade
•
Practice Problem
•
Hard
Chaucer Sung
FREE Resource
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100 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
87. 在真空管射頻功率放大器的屏極電流表上,什麼代表正確的屏極調諧控制調整?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
88. 在RF功率放大器使用自動位準控制(ALC)的理由是什麼?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
89. 通常使用什麼設備來將發射機輸出阻抗與不等於50歐姆的阻抗匹配?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
90. 什麼情況會導致RF固態功率放大器的永久損壞?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
91. 真空管RF功率放大器的負載或耦合控制的正確調整是什麼?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
92. 為什麼在發射機鍵控電路中,有時含括時間延遲電路?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
93. 電子鍵的目的是什麼?
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