無(wú)線維護(hù)機(jī)務(wù)員章節(jié)練習(xí)(2019.05.21)

來(lái)源:考試資料網(wǎng)
參考答案:(1)打開(kāi)OMT軟件,點(diǎn)擊“FILE”“CREATIDB&rdquo...
參考答案:因?yàn)閐Bi是相對(duì)于點(diǎn)源為參考,而dBi是相對(duì)于半波振子為參考,而半波振子相對(duì)于點(diǎn)源的增益約為2.15dB,(2.5分)所...