單項選擇題What type of interference is produced by other transmitters on the same frequency? （）

A. Double interference
B. Co-channel interference
C. Adjacent channel interference
D. Reflected interference
E. Timing interference


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1.單項選擇題Which unit is used for measuring traffic? （）

A. Erlang
B. Bit/second
C. Hertz
D. Subscribers/kHz
E. Subscribers/minute

2.單項選擇題What is the name of the type of fading which is due to shadowing? （）

A. Atmospheric fading
B. Multi-path fading
C. Rayleigh fading
D. Log Normal fading
E. Path loss

3.單項選擇題Which cell plan is designed first and is the basis for future planning?（）

A. Final
B. PQreliminary
C. Coverage
D. Initial
E. Nominal