TRF-958, Test Patterns
TRF generators are provided with large set of the most useful patterns. The patterns cover all common requirements,
so there is no need to modify the standandard settings. But in case of any need, the set can be modified or even replaced
by new custom patterns.
The TRF-95x generators contain more than one hundred (>100 !) standard test patterns and signals. Number of patterns
is limited only by number of installed memory blocks (FD1..FD4, see Datasheet for details, please) and each pattern
The below listed pattern previews (dimensions and resolution is adjusted and limited for internet) shows instrument
possibilities. To any pattern can be applied Motion Simulation function, that makes the pattern dynamic. This is important
mainly in case of digital TV systems for compression and data transfer evaluation.
Color Bars (16:9 picture format)
This is the most common test pattern. The generator provide this patterns with 100% saturation and selectable amplitude
10%, 25%, 50%, 75% and 100%. Similar patterns are grey scales (8 and 64 steps), R,G,B scales, single color areas, special
signals like +/-U, +/-V for example and other. All patterns are available under 4:3 and 16:9 picture formats.
The generator contain set of sine wave patterns with frequencies from 0.1 to nearly 7MHz and combined patterns called
Multiburst. There are also available Sweep patterns, where the frequency changes continuously (compared to Multiburst)
from one frequency to another. Also this patterns are available under 4:3 and 16:9 picture formats.
This pattern is based on gradient of blue, 100% saturated, amplitude 75%...0%. The generator contain also gradient of white
(grey), red, green or gradient of special signals like G-Y=0 in the second and fourth quadrant. This patterns are also
available under 4:3 and 16:9 picture formats.
Reference NTSC Pattern
This pattern is designed especially for NTSC TV system and can be well displayed in 4:3 picture format. This pattern contain
elements for picture geometry evaluation, but mainly a lot of exactly defined signals.
Reference PAL Pattern
This pattern is designed for PAL TV system, 4:3 picture format. This pattern also contain some elements for picture geometry
evaluation and a lot of exactly defined signals. Some of it use V signal alternation (see thin horizontal stripes on the
left and right). When the receiver is correctly adjusted, this area looks grey like the pattern background.
Reference PAL Pattern (16:9 picture format)
This is similar pattern to the previous one, but it is designed especially for the 16:9 picture format.
This reference pattern is mostly used in analog and digital TV systems. There is combined real scene with precise defined
color table. This pattern is used maily for subjective visual picture evaluation, but the color table can also be used for
colorimetric coordinates obtaining. In digital TV systems with higher resolution also the very fine details are visible.
Combined Pattern (16:9 picture format)
This pattern shows to designers how to combine basic components with bitmap images. Note that basic components has
resolution given by current settings, while bitmap images has fixed resolution. When the image resolution
is too low, the image inside the pattern will not look well. For analog systems the SDTV resolution is the most effective
compromise between pattern quality and size. Bitmap images with high resolution are then suitable mainly for digital
TV systems, where the fine details can be visible.
This pattern, as well as all others, can start moving when Motion Simulation function is enabled (several speeds available).
For custom pattern design there is available TRF Manager 9 design system. The user can thus compose his own pattern
based on predefined components within a few minutes. Click on the preview image to see the large pattern designer window.
Custom_solutions (Custom solutions)
Inputs_and_Outputs (TRF958, Inputs and Outputs)
Extra_Accessories (TRF958, Extra Accessories)
Test_Patterns (TRF-95x, Test Patterns)
Info (TRF958, TV generator PAL-SECAM-NTSC-HDMI-DVI-MPEG-DVB)
FAQ (TRF950, TRF958: Frequently Asked Questions)