... Average Power, Trunk RUIYAN -CATV Signal Level Meter RY-S200/S200DFeatures of S200/S200D Signal Level Meter 1 ... V, C/N, Average Power, Trunk line Voltage, RY-S128/S128DNoSpectrum, Channel Power, Tilt , A/V, C ... /N, Average Power, Trunk line Voltage,RY-S200/200DNoMER, BER, Tilt , A/V, C/N ... , Average Power, Trunk line Voltage, RY-S1127/RY-S1127DQYesSpectrum, MER, BER , Tilt , Channel Power, A/ ...