單項(xiàng)選擇題What is used to prevent ‘ping-pong effects’, that is, rapid, successive handovers? （）
A. Discontinuous Transmission
B. Hysteresis
C. Dynamic Power Control
D. Frequency Hopping
E. Cell Load Sharing
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1.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
2.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.
