72-7985 TENMA, 72-7985 Datasheet - Page 8

• Manufacturer Part Number: 72-7985
• Description: SIGNAL GENERATOR, HDTV PATTERN
• Manufacturer: TENMA

Specifications of 72-7985

• Signal Generator Type: HDTV Pattern

The (+) and (–) buttons select from 28 different video test patterns.
Standard patterns: ▪Color bars ▪Color bar and Multi-burst on same
screen ▪Grey-scale ▪Checkerboard ▪Circle ▪Crosshatch Dynamic
patterns: ▪Full screen smooth fade from black to full white
▪Checkerboard which alternates white and black squares approximately
once per second (this pattern may be good to test compression artifacts if
the video is going to be compressed for lower bandwidth transmission in
some future product).
There are 2 patterns with red, green and blue horizontal bars over white
and black background. This is ideal for video distribution testing,
especially over long cable runs. The high frequency loss in the long cable
runs will cause the color of the horizontal bars to smear to the right. MCM
Electronics offers several models of high quality video amplifiers and
extenders which have provisions for compensating for these losses.
The same 2 patterns are also useful when sending video over UTP cable,
such as Cat5, Cat5E or Cat6, both for the high-frequency loss and skew
compensation. The right and left edges of the RGB bars should line up
vertically. This pattern provides convenient means for making this
adjustment.
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405 S. Pioneer Blvd. Springboro Ohio 45066