12.07.2015 Views

MESUREURS DE CHAMP MANUEL D'UTILISATION - Sefram

MESUREURS DE CHAMP MANUEL D'UTILISATION - Sefram

MESUREURS DE CHAMP MANUEL D'UTILISATION - Sefram

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– 7806-7807-7808-7809-7845-7847 –U d= 1 µV N = 0 dBµV N = - 60 dBmV N = -108.75 dBmU d= 1 mV N = 60 dBµV N = 0 dBmV N = -48.75 dBmU d= 1 V N = 120 dBµV N = 60 dBmV N = 11.25 dBm20.14 Valeurs à mesurerValeurs minimum et maximum pour une bonne qualité du signal.MesuresTerrestreNiveau, puissance (dBµV)minimaxiC/N(dB)BERMER(dB)modulationTV analogique 57 74 > 45 - - -FM 50 66 > 38 - - -DVB-T 35 70 > 26 BERo < 2 E -4 > 26 8K, 64QAM, 1/32, 2/3DVB-T2 35 70 > 22 FER < 2 E -7 > 22 32K, 256QAM, 1/8, 2/3DVB-C, MCNS 57 74 > 31 BERo < 2 E -4 > 31 64QAMSatelliteTV analogique 47 77 > 15 - - -DVB-S, DSS 47 77 > 11 BERo < 2 E -4 > 11 QPSK, 3/4DVB-S2 47 77 > 8 PER < 1 E -7 > 8 8PSK, 2/3p. 108

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