... to the unique calibration system built in to the meter. Each time the meter boots up it automatically calibrates for optimum performance ... range:40-110dBuV Input Resistance:75ohm Demodulation:QPSK,16QAM,64QAM Test: BER, C/N, FEC Signal Quality and Strength Multi-Channel ... Level:-65dbm-25dbm Input Resistance:75ohm Symbol rate:2Msps-45Msps Test: BER, C/N, FEC Signal Quality and Strength Auto search ...