单项选择题
Why are base stations sometimes cascade connected? （）
A. To save antennas B. To share PCM links C. To share RBS equipment D. To simplify the installation E. To be able to reuse frequencies
单项选择题 Which of the following is the nominal output power for a GSM 900, class 4, or GSM 1800/GSM 1900, class 1, mobile station? （）
单项选择题 What is the advantage of using DTX for an MS? （）
单项选择题 Which of the following will not increase system capacity? （）
