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SOLID SF-750PRO DVB-C (BER+MER) dB Meter with AC / DC Features: Support DVB-C function Support Automatic channel scanning Build highlight LED Show the signal quality of the nixie tube Built-in buzzer Support to check the power cable automatically Support to reset to defaults The unit of signal power support dBm, dBuV Use USB 2.0 for software upgrades and data backup. Specifications of DVB-C signals - Digital Channel Frequency - 47 to 862 MHz Impedance - 75ohm Signal level - -78 to -10dBm Symbol Rate - 1.4M to 7.5M baud Demodulation Scheme - 16QAM / 32QAM / 64QAM / 128QAM / 256QAM Demolution type - DVB-C Bandwidth - 6MHz / 8Mhz