單項(xiàng)選擇題

Which of the following will not increase system capacity? （）

A. Increasing the number of available frequencies.
B. Changing the modulation scheme.
C. Implementing half rate vocoders
D. Going from a 4/12 to a 3/9 reuse pattern.
E. Splitting cells

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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

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