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Basic Knowledge of Digital Signal Meter
Source: | Author:hedy | Published time: 2017-12-12 | 3504 Views | Share:
The classification of signals:
  • Satellite Finder (DVB-S/S2)
  • Terrestrial Signal Meter (DVB-T/T2)
  • Cable Signal Meter (DVB-C/C2)

The modulation of signals:
  • DVBS/S2: HBCD、BPSK、QPSK、8PSK、16APSK、32APSK、ACM/VCM、CCM
  • DVBT/T2/C/C2: QPSK、16QAM、64QAM、256QAM、1024QAM、4096QAM

Signal strength/power:
The signal strength is expressed with voltage value(dBuv) or power voltage(dBm).

Parameters of signal quality:
  • BER: Bit Error Rate. (PRE BER, POST BER)
  • SNR: Signal Noise Ratio
  • MER: Modulation Error Ratio

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