Specifications

General Operation
VTM Series Installation and Operation Handbook
3-16
If Variable Gain mode is selected while already in a fixed gain (such as x2.5 or x5) the
gain is set to the variable gain selected. When VAR is pressed to exit variable gain, the
gain returns to the previously fixed gain. Pressing the STEP button while in variable
gain returns the gain to x1.00.
Press the ZOOM button to cycle through one of three display options:
• ZOOM positioned on the 0 IRE, 0 mV, or 0% graticule line
• ZOOM positioned on the 100 IRE or 700 mV (or 800 mV for Eye Pattern), or
100% graticule line
• Normal
At each zoom position, the graticule scale and waveform displays expand to provide
more resolution around the zoom point.
Placing the Waveform Display in Line Select Mode
NOTE: When inputs A and B are selected simultaneously within the same pane, the Line Select
function is not available.
Pressing the LINE button enables the selected pane to monitor a single line
of a video signal. This enables Line Select to monitor individual areas of the
entire image. To view a line in Line Select mode:
1. Press the LINE button to place the selected waveform display pane in Line Select
mode. At the bottom-center of the display, the pane displays the Line number and
Odd or Even field, as shown in Figure 3-13.
Figure 3-13. Establishing Line Select
NOTE: In a Progressive (p) format. Odd and even selection is not available.
2. Press the CURVED ARROW knob to alternate between the ODD and EVEN
fields.
3. Rotate the CURVED ARROW knob to select the line to be displayed.