When frequency hopping is not used, there should be no frequency points with the same

A.SACCH

B.FCCH

C.SDCCH

D.SCH

E.BCCH

A.quantization

B.denoising

C.modulation

D.anti-aliasingfiltering

A.Frequency allocation

B.Space for antennas

C.Electrical power availability

D.Contract with owner

E.Availability of transmission to the BSC

A.当鱼洗器壁的振动频率越来越接近于鱼洗固有频率时，产生共振现象； Resonance phenomenon occurs when the vibration frequency of the wall of the fish washer is closer and closer to the natural frequency of the fish washer;###SXB###B.当鱼洗器壁的振动频率大于鱼洗固有频率时，产生共振现象； Resonance phenomenon occurs when the vibration frequency of the wall of the fish washer is greater than the natural frequency of the fish washer;###SXB###C.当鱼洗器壁的振动频率小于鱼洗固有频率时，产生共振现象； When the vibration frequency of the fish

A.当鱼洗器壁的振动频率越来越接近于鱼洗固有频率时，产生共振现象； Resonance phenomenon occurs when the vibration frequency of the wall of the fish washer is closer and closer to the natural frequency of the fish washer;#B.当鱼洗器壁的振动频率大于鱼洗固有频率时，产生共振现象； Resonance phenomenon occurs when the vibration frequency of the wall of the fish washer is greater than the natural frequency of the fish washer;#C.当鱼洗器壁的振动频率小于鱼洗固有频率时，产生共振现象； When the vibration frequency of the fish

A.Frequency allocation

B.Space for antennas

C.Electrical power availability

D.Permission/Contract with owner

E.Availability of PCM link to the BSC

A.形状 Shape

B.重量 Weight

C.体积 Volume

D.频率 Frequency

E.密度 Density

A.形状 Shape

B.重量 Weight

C.体积 Volume

D.频率 Frequency

E.密度 Density

e has been imposed ________．

A.After determining that the frequency or channel appears to be no longer in use

B.After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications

C.After the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded

D.Routine communications can resume if，in the Master's opinion，communications on that frequency or channel will not interfere with emergency communications

ceived ________．

A.No action is necessary，as the DSC control unit will automatically switch to the NBDP follow-on communications frequency

B.The operator should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band on which the distress alert was received

C.The Operator should immediately set continuous watch on VHF channel 70

D.The Operator should immediately set continuous watch on the NBDP frequency that is associated with the frequency band on which the distress alert was received