單項(xiàng)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(xiàng)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(xiàng)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
