Specifications

Chapter 14 127
Demodulating and Viewing Television Signals (ESA-E Series Option B7B)
Measuring Depth of Modulation
Demodulating and Viewing
Television Signals (ESA-E Series
Option B7B)
Step 6. Enable a delta marker and using the front-panel knob move the delta
marker within the white level (NTSC or PAL waveforms) or the sync tip
(SECAM waveforms) at the bottom of the waveform:
Press
Marker, Delta, then rotate front-panel knob (or press Peak Search,
Min Search).
Figure 14-3 Measuring Marker Delta (%) for Depth of Modulation (NTSC)
The depth of modulation (in percent) can now be determined by
subtracting the marker readout (in percent) from 100. A typical value
would be 87.5%.