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. Contract with owner
E. Availability of transmission to the BSC
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1.單項(xiàng)選擇題Which cell pattern is recommended for use with frequency hopping?（）
A. 4/12
B. 3/9
C. 7/21
D. 7/7
E. None of these
2.單項(xiàng)選擇題What does Grade of Service (GoS) mean? （）
A. Number of available subscriber services
B. Number of unsuccessful call set-ups due to congestion
C. Channel utilization
D. Number of successful call set-ups
E. Number of dropped calls
