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

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單項(xiàng)選擇題

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? （）

A.33 millierlangs
B.66 millierlangs
C.100 millierlangs
D.10 millierlangs
E.25millierlangs

單項(xiàng)選擇題

Reusing frequencies in a cellular pattern (compared to “one big cell”)（）

A. Increases channel utilization, cost ,and interference.
B. Increases capacity and cost, but decreases interference.
C. Increases capacity, but decreases cost and interference.
D. Increases capacity, cost, and interference.

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Which of the following is not necessary to consider when surveying a potential site? （）

你可能感興趣的試題

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? （）

Reusing frequencies in a cellular pattern (compared to “one big cell”)（）

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