單項(xiàng)選擇題What is the ERP (Effective Radiated Power), if the output power from the radio is 43 dBm, the cable losses 3 dB, and the antenna gain 14 dBd? （）
A.43dBm
B.54dBm
C.32dBm
D.60dBm
E.23dBm
您可能感興趣的試卷
你可能感興趣的試題
1.單項(xiàng)選擇題What is the point of using a combiner? （）
A. Up to four sites can share one PCM link.
B. Several TRXs can share one antenna system.
C. The mobile can listen to two base stations at the same time.
D. Only one base station is needed per site.
E. Sending and transmitting can be performed from the same antenna.
2.單項(xiàng)選擇題Which of the following is not necessary to consider when surveying a potential site? （）
A. Space for antennas
B. Frequency allocation
C. Electrical power availability
D. Permission/Contract with owner
E. Availability of PCM link to the BSC
