Global Setup Menu Functions
TVM Series Installation and Operation Handbook 169
Copyright © 2008, Harris Corporation
Eye Intensity
The Eye Intensity submenu is used to raise or lower the brightness of the displayed Eye
Pattern. The range of intensity is 25% to 200%.
Eye Contrast
The Eye Contrast submenu is used to adjust the overall difference between the lightest
and darkest colors of the Eye Pattern. The range of intensity is 25% to 200%.
Persistence
Persistence is used to determine how long a data point (pixel) in the Eye Pattern
remains on the display (refresh rate). The ranges of Persistence are NORMAL, 1 TO 6
& INFINITE. If INFINITE is selected, the waveform data point will always remain on
the screen.
For Eye pattern, the correlation of values derived by using measurement cursors versus
the jitter meter could differ unless the eye pattern is displayed using the maximum
persistence setting. A normal persistence setting will make it more difficult to view
pixels near the widest sample points, which forces the placement of the measurement
cursors to a lower (narrower) jitter value. Jitter can only be selected when the Eye
Pattern is enabled.
Attack
Attack is the initial intensity that the data point (pixel) appears in the display. The
range of attack is LOW (the lowest intensity), 2 to 15 (NORMAL is 9), and MAX (the
greatest intensity).
Vector Setup Menu
The Vector Setup menu is used to select the PAL Overlay, SDI I&Q, Vector Intensity,
Vector Contrast, Persistence, and Attack.
PAL Overlay (Analog Option Required)
A PAL signal by default appears in parade mode. The PAL Overlay menu is used to
determine if the PAL signal should be in Parade or Overlay mode.
When in Parade mode multiple components of the same signal are shown next to one
another (i.e. Inputs Y, then CB, then CR in a YCBCR format). When in Overlay mode
the multiple components of the same signal are displayed over each another (i.e., R
over G over B in an RGB format).
SDI I/Q Lines
The SDI I/Q Lines submenu is used to turn OFF and ON the I and Q marker lines on
the Vector Display. The default condition is OFF. The I and Q marker lines only
appear in SD format.
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