单项选择题How many transmitters (TXs) can be configured to an omni antenna using a CDU-C+?()

A.1
B.2
C.4
D.6
E.8


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1.单项选择题Where is the TX reference point? ()

A. Where the jumper cable is connected to the output of the TX.
B. Where the jumper cable is connected to the RBS.
C. Where the jumper cable is connected to the output of the combiner.
D. Where the jumper cable is connected to the antenna.
E. Immediately outside the antenna.

2.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

3.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)

4.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

5.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

7.单项选择题What is the advantage of using DTX for an MS? ()

A. Increases battery life
B. Better Bit Error Rate (BQRE)
C. Higher strength
D. Increased bit rate
E. Better voice quality

8.单项选择题Which of the following will not increase system capacity? ()

A.Increasing the number of available frequencies.
B.Introducing double BA-lists
C.Implementing half-rate vocoders.
D.Going from a 4/12 to a 3/9 reuse pattern.
E.Splitting cells.

9.单项选择题What is used to prevent ‘ping-pong effects’, that is, rapid, successive handovers? ()

A. Discontinuous Transmission
B. Hysteresis
C. Dynamic Power Control
D. Frequency Hopping
E. Cell Load Sharing