Tektronix 11801C User Manual page 277

11801C User Manual
you need to set the rate for the mask. Touch Mask Testing, touch the User
Eye Rate selector, and use the knob to set the desired rate. Now proceed to
edit the mask as described previously. After editing the mask, touch Create
User Eye from the Mask Testing pop up menu. The new user eye mask
becomes a standard mask selectable from the Standard Masks pop up
menu, as User Eye, and the instrument is able to perform standard mask
autoset to your user eye mask. You can define and store many separate
user eye masks with the Store Setting feature. See Store Settings, page
3 177, for more information. The following conditions apply to user eye
masks:
H There must be three component masks.
H The three component masks are numbered 1 through 3, from the top to
the bottom of the screen. Masks 1 and 3 must extend from the extreme
left to the extreme right of the display.
H There cannot be more than 24 vertices in all three component masks.
H Each component mask must have at least three vertices.
Mask Testing
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