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SPG8000A User Manual 109
Signal set Signals in the signal set Description
value. The 2T pulse is used for Short Time response testing and
the bar is used for Line Time response testing.
The type of 2T pulse depends on the signal format:
• For SD-525 format, this is a 2T4 pulse
•
For SD-625 format, this is a 2T5 pulse
•
For HD and slow-progressive 3G formats, this is a 2T30
pulse
•
For 3G fast progressive formats, this is a 2T60 pulse
•
For 4:2:2 formats, chroma pulses are at half the bandwidth
Color Pulses Eight color pulses of 2T half-amplitude width upon Black and white
backgrounds. The upper half of the pattern has positive pulses on a
Black background, testing each combination of the three color
channels. The lower half of the pattern has a white background, so
negative pulses are used to result in the same line colors. For
example, the yellow pulse in the upper half is 100% red plus 100%
green, resulting in yellow on a Black background. At the same
horizontal location in the lower half, a pulse of −100% blue added to
the white background also results in a yellow line.
Timing Co-siting Pulse One single-sample wide pulse in the center of the image, used to
show the timing relationship and alignment between chroma and
luma channels. Different amplitudes are used to distinguish the three
channels.
SDI Full-field equalizer test pattern according to SMPTE RP 198-1998.
This pattern consists of alternate 10-bit words, 300h and 198h,
regardless of the current sampling structure and format. For 10-bit
4:2:2 YCbCr HD-SDI formats, the Y samples carry the 198h words
and the Cb/Cr samples carry the 300h words resulting in a magenta-
shaded field for this pattern. For other formats, these same 10-bit
word values result in different color representations. This pattern
also includes the polarity-control word, meaning the first sample in
the active picture in every other frame is 190h instead of 198h.
PLL Test Full-field phase-locked loop test pattern according to SMPTE RP
198-1998. This pattern consists of alternate 10-bit words, 200h and
110h, regardless of the current sampling structure and format. It
appears as a 24% gray field in 10-bit 4:2:2 YCbCr formats but as
different colors in other formats.
SDI Matrix Matrix pattern, with the equalizer test pattern (300h 198h) in the
upper half of the field and the PLL test pattern (200h 110h) in the
lower half of the field.
Frame
Picture
Frame Picture Picture rendered from user-supplied BMP files stored in the
PICTURE directory of the mainframe memory.
Press
the left or right
arrow button to select a test signal from the list. (See SDI picture file
generation.)
Table 39: Enhanced SDI test signal sets
Enhanced signal set Description
Monochrome fields Includes all monochrome flat fields from 0% to 100% in 10% increments
Color fields Includes color fields for six primary and secondary colors at both 100% and 75% values
SMPTE RP431-2 color patches
Includes full field patterns for each of the Black-White and Black-Dark
Gray steps, plus the “–1” and “–2” color patches