VM700的英文操作手册
Operating Basics
The VM700T Video Measurement Set Teletext option measures parametersrelated to the transmission of digital information in the vertical interval. Thismeasurement requires a teletext signal. Running the Teletext measurement writesa file called Teletext into the Measurement Results directory.
SoundInSync measures parameters related to the transmission of digitalinformation in the sync pulse. This measurement requires sound in the syncpulse to guarantee proper operation. Running the SoundInSync Measurementwrites a file called SoundInSync into the Measurement Results directory.
Function Key Special Feature
A special feature enables Teletext and SoundInSync measurements on signalswith offsets in the sync level such as found in scrambled video. The procedurerequires that the measurements be called from a Function Key. Refer to FunctionKey Special Feature on page 3–6 for more information.
Measure Mode Menu Operation
Measure mode is used for making interactive measurements of NTSC and PALsignal properties, and accessing the measurements of any installed options asshown in Figure 2–1. This is different from Auto Mode, which is used for
automatic, non-interactive, and continuous execution of user-specified measure-ments.
To view the Video Options directory window, press the Measure button on thefront panel. If the VM700T was in the Video Options directory when you lastused Measure mode, the Video Options directory displays. Otherwise, touch theVideo Options soft key at the bottom of the display to view the Video Optionsdirectory. Touch theTeletextsoft key to display the measurement selectionsfor the Teletext option.
VM700T Option 20 Teletext Measurements User Manual2–1

