TV EXPLORER HD+ manual - Promax

USER’S MANUAL. TV EXPLORER HD +5.14.8 Digital TV: Measuring MEROnce determined the suitable parameters for COFDM, QAM, QPSK or 8PSKsignal reception, it will be possible to measure MER, pressthe MER measurement screen.[12] key until it appearsFigure 43.- DVB-T/H (COFDM) signals MER measurement screen.First of all, you will see the modulation error ratio measurement: MER.Following, it appears the Noise Margin (NM) measurement (in the figure value8.4 dB). It indicates a safety available margin according to the MER level measured thatallows signal degradation until arriving to the QEF (Quasi-Error-Free) limit value.EnglishFigure 44.- DVB-S2 (QPSK/8PSK) signals MER measurement screen.01/2011 Page 63