... CATV Meter Signal Level Meter Spectrum, MER, BER , Tilt , Channel Power, A/V, C/N,Average Power, Trunk line Voltag RY-1127D signal ... more suitable for the measurement of digital-analog-mixed network. Signal Lever Meters correlation tableModel NoConstellationMain ParameterRY-S110/S110DNoDoulbe channel, A ... batteryAC Supply:AC 90V-220V 50Hz-60HzWorking time6hCharging time3h QAM256 CATV Signal Level Meter