單項選擇題基站EIRP的計算公式為()
A. BTS max. transmit power -BTS combiner and jumper loss -BTS feeder and connector loss + BTS antenna gain
B. BTS max. transmit power -BTS combiner and jumper loss
C. BTS combiner and jumper loss -BTS feeder and connector loss
D. 以上都不對
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1.單項選擇題根據(jù)GSM規(guī)范,如果基站的接收靈敏度為-110dBm,那么為了保證正常工作,其載頻的第一鄰頻干擾電平最大值為:()
A.9dB;
B.-9dB;
C.-101dBm
D.-119dBm
2.單項選擇題當(dāng)進(jìn)行1800M網(wǎng)絡(luò)覆蓋規(guī)劃時應(yīng)采用的傳播模型為()。
A.Okumura-Hata
B.Cost231-Hata
C.Cost-231Walfish-Ikegami
D.Keenan-Motley