The terrible noise is()me mad.
A、turning
B、setting
C、driving
D、putting
A、turning
B、setting
C、driving
D、putting
A、the signal to noise of the current optical amplifier B、the signal to noise of the previous amplifier or source C、the signal to noise introduced by the optical multiplexer D、the accumulated noise to signal ratio of the optical channel
A、signal strength 46dBm, noise level 95dBm B、signal strength 74dBm, noise level 94dBm C、signal strength 68dBm, noise level 79dBm D、signal strength 50dBm, noise level 56dBm
A、-40dBm signal and -90dBm noise B、-50dBm signal and -90dBm noise C、-30dBm signal and -90dBm noise D、-20dBm signal and -90dBm noise