Tektronix WFM8200 Technical Reference page 119

Composite analog
pulse to bar ratio
Composite analog
field rate tilt
WVR8200 and WVR8300 Specifications and Performance Verification
Apply a pulse and bar signal and use cursors to measure the difference between
the two.
1. Set the waveform rasterizer to the factory presets. (See page 59, Restore the
factory presets.)
2. Connect the precision video generator to one of the CMPST A input
connectors and terminate the other connector with the precision terminator.
3. Set the precision generator for a 2T Pulse and Bar.
4. Press the Input 2A button to select the Composite A input.
5. Press the FULL button to make the WFM tile the full screen display.
6. Press the CURSORS button to turn on the cursor controls.
7. Use the arrow keys to navigate between Volt1 and Volt2 and adjust the
cursors to be near the top portions of the waveform. Use the GENERAL
knob to adjust them.
8. Use the vertical knob to move the top of the waveform to the zero graticule.
9. Press and hold the GAIN button, select Gain Settings, and then x10.
10. Press the GAIN button to close the menu.
11. Place one cursor on the top of the "Bar." Use the GENERAL knob to adjust
Volt1 in the WFM tile.
12. Use the horizontal knob to put the "pulse" on the dotted line at the center
of the screen.
13. Press and hold the MAG button and select x50 to expand the pulse
horizontally.
14. Press the MAG button to close the menu.
15. Position the second cursor on the top of the pulse. Select Volt2 using the
arrow keys and use the GENERAL knob to adjust it.
16. Record the cursor delta in the test record.
Apply a field rate square wave and use cursors to measure the tilt.
1. Set the waveform rasterizer to the factory presets. (See page 59, Functional
tests.)
2. Connect the precision video generator to one of the CMPST A input
connectors and terminate the other connector with the precision terminator.
3. Set the precision generator for Field Square Wave.
4. Press the Input 2A button to select the Composite A input.
Video and general performance tests
103