单项选择题
Antenna gain is obtained by...? （）
A. A power amplifier in the antenna system
B. Concentration of radiation
C. Highly effective antenna cables
D. Good SWR (Standing Wave Ratio)
E. A spherical radiation pattern
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相关考题
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单项选择题
Which of the following is an Ericsson scheme to gradually tighten the reuse distance in a network? （）
A. Ericsson Engineering Tool (EET)
B. Multiple Reuse Pattern (MRP)
C. Operation and Support System (OSS)
D. Frequency Reuse Plan (FRP)
E. Basic Reuse Plan (BRP) -
单项选择题
What does locating mean? （）
A. Paging of a mobile in more than one cell
B. Best cell selection
C. Changing of cell parameters
D. Roaming
E. Tuning -
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
