Generating pseudo-random noise – Quantum Data 881 User Manual

Page 285

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881/882 Video Test Generator User Guide (Rev A.22)

267

Note: If the HDMI image received is color difference (YCbCr) then the menu
indications will show this as follows:

Note: If the HDMI image received is a deep color image, the values will indicate the
greater value ranges as follows:

10. To specify pixel coordinates, do the following:

a. Choose either the X or Y coordinate by pressing the adjacent soft key.

b. Set the value of each coordinate by pressing the + or - key. When you have set both

the X and Y coordinates, read the RGB values at the right side of the generator’s
display.

Note: To increment the value by 10s, press the soft key next to EXP until 010 appears;
to increment by 100s, press the soft key next to

EXP until 100 appears.

To view the captured image out the HDMI transmit port:

1. After capturing an image with the

ViewPix function, press the Option key. The View

Data menu appears:

The generator HDMI Tx port transmits the image.

Generating Pseudo-random noise

This section provides procedures for generating pseudo-random noise from the generator.
You can use this feature to test cables, to verify that another HDMI/DVI sink device that
has the Quantum Data pseudo-random noise algorithm (e.g. another 880 series analyzer)
is processing pseudo-random noise properly.

To generate pseudo-random noise:

1. Connect the HDMI transport output port to the HDMI/DVI receive device.

Use the HDMI to DVI adapter cable if testing DVI.

Capture

Exit

!

!

X:0000
Y:0000
EXP:001

Cr:0128

Y:0180

Cb:0128

*

Capture

Exit

!

!

X:0000
Y:0000
EXP:001

Cr:2048

Y:2881

Cb:2048

*

View Data

!

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