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METHOD AND CIRCUIT ARRANGEMENT FOR SIMULATING DISTOTIONS IDENTIFIABLE FROM TIME TO TIME AS SIGNAL GROUPS OF DIFFERENT LEVEL DURING THE TRANSFER OF DIGITAL SIGNAL GROUPS, MAINLY OF TELETEXT SIGNALS
METHOD AND CIRCUIT ARRANGEMENT FOR SIMULATING DISTOTIONS IDENTIFIABLE FROM TIME TO TIME AS SIGNAL GROUPS OF DIFFERENT LEVEL DURING THE TRANSFER OF DIGITAL SIGNAL GROUPS, MAINLY OF TELETEXT SIGNALS