Tektronix TG8000 User Manual

HD3G7 HD 3 Gb/s SDI Video Generator module
Y/G/X parameter
This parameter
displays one of the three signal components: the Y component for
aYC
b
C
r
sample structure, the G component for a GBR sample structure, or the
X component for an XYZ sample structure. Use the left (◄)orright(►) arrow
button to set the c omponent to ON or OFF.
Cb/B/Y parameter
This parameter displays one of the three signal components: the C
b
component for
aYC
b
C
r
sample structure, the B component for a GBR sample structure, or the
Y component for an XYZ sample structure. Use the left (◄)orright(►) arrow
button to set the c omponent to ON or OFF.
Cr/R/Z parameter
This parameter displays one of the three signal components: the C
r
component for
aYC
b
C
r
sample structure, the R component for a GBR sample structure, or the
Z component for an XYZ sample structure. Use the left (◄)orright(►) arrow
button to set the c omponent to ON or OFF.
NOTE. When the s ampling structure for the current format uses the YCbCr color
space, the default settings enable only the Y channel. This results in the familiar
black to white zone plate patterns. When the RGB color space is used the default
settings enable all three channels, also resulting in the black t o white zone plate
patterns. A colored zone plate pattern can be created by enabling or disabling
individual channels. When the XYZ color space is used, the
resultant patterns will
show some chroma in all combinations of the X/Y/Z channel settings, due to the
inherent encoding of this color space.
Waveform Shape
parameter
Use the Waveform Shape parameter to set the waveform to a Sine, Triangle,
or Square wave.
T Reset parameter
Use the T Reset parameter to reset the time coordinate (t in the zone pla te
equation) of the pattern to zero. When the T Reset parameter is first set to Enable,
the time coordinate is reset to z ero and there is no apparent motion in the zone
plate, even if any of the time coefficients (K
XT
,K
YT
,K
T
,orK
T
2
) are non-zero.
Enabling the T Reset parameter does not set the other parameters to zero.
If you then alter a ny of the K parameters, the temporal (t) coordinate will be
allowed to change to match. Subsequent changes to K parameters will first reset
the time coordinate (t), and then allow it to change with the K parameter.
Disable allows the zone plate time coordinate to increment continuously. When
T Reset is set to Disable resetting all of the time coefficients (K
XT
,K
YT
,K
T
,and
K
T
2
) to zero will stop the apparent zone plate motion but the temporal coordinate
will remain where it is, even if it has moved to an off-screen position. You must
Enable the T Reset paramete r to reset the temporal coordinate to zero.
To completely disable all motion and reset the pattern, set all of the time related K
parameters to zero and set the T Reset parameter to Enable.
TG8000 Multiformat Test Signal Generator User Manual 3–183

Tektronix TG8000 Specifications

General

Brand	Tektronix
Model	TG8000
Category	Portable Generator
Language	English