A system is used to transmit base3 PCM signal of 256 level steps, the input signal works in the range between (50 to 90) kHz. Find the bit rate and signal to noise ratio in dB? Note that: the step size is considered to be triple times ?system levels 570 Mbps, 69.5 dB 530 Mbps, 65.5 dB 520 Mbps, 64.5 dB 540 Mbps, 66.5 dB 560 Mbps, 68.5dB 530 Mbps, 53.5 dB 550 Mbps, 67.5 dB