Modulation analyzer and level measurement device

A method for determining a modulation of a CATV channel, the modulation being one of a digital modulation and an analog modulation, the method comprising:

• passing at least a portion of a tuner output from a tuner, through a band pass filter, to a RF detector, wherein the band pass filter directly connected between the tuner and the RF detector;
• generating, by the RF detector, a RF detector output by converting a frequency domain voltage stream to a time domain voltage stream;
• passing the RF detector output from the RF detector to a sync detector directly connected to the RF detector;
• extracting, by the sync detector, timing information from the time domain voltage stream;
• attenuating at least a portion of a sync detector output to create a remaining portion of the sync detector output;
• passing the remaining portion of the sync detector output to a peak detector;
• generating, by the peak detector, a consistent voltage stream when the sync detector provides a voltage stream comprising synchronous voltages;
• and
• passing an output of the peak detector to a subsequent device, the output of the peak detector indicating whether the modulation of the CATV channel.