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User’s Manual
0.5dBmV, NTSC modulation, a video to audio carrier level ratio of
Bar Graphs
Bar graphs of the video carrier, audio carrier, second audio carrier (if used) and adjacent channel level are all displayed side by side.
Vertical Scale - The vertical scale is auto scaling. The measurement range is changed by clicking on the vertical scale, holding down the button and dragging the vertical scale to the desired position.
Limits Boxes - Yellow boxes on the graph represent the passing Limits criteria. Bars terminating inside the Limits box are within the acceptable limits.
Dual Audio Carriers - In systems utilizing NICAM second audio carriers, the display provides two separate audio carrier levels based on the data in the channel table configuration. If dual audio carriers are set up, the level of both are measured and displayed.
Figure
Limits for the second audio carrier are set up just as for the primary audio carrier, with reference to the video carrier level.
