单项选择题
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
单项选择题 What is the point of using a combiner? （）
单项选择题 Which of the following is not necessary to consider when surveying a potential site? （）
单项选择题 A subscriber makes a two-minute call and a four-minute call during the busy hour. How much traffic does he generate for that hour? （）
