Tektronix WFM7200 Manuel utilisateur
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Product documentation
Covered products The following Tektronix products are covered by this document:
WFM7200 Waveform Monitor
WVR7200 Waveform Rasterizer
Product documentation
version
Your instrument was shipped with firmware version 3.4.X installed, which is
newer than the firmware version described by the product documentation that was
shipped with your instrument. This document provides a brief description of the
new features being introduced with firmware version 3.4.X.
You can download the latest versions of the documentation for your product at
the Tektronix Web site (www.tek.com).
New features in firmware version 3.4.X
Firmware version 3.4.X introduces a new HDR (High Dynamic Range) tool set
for assisting camera operators and editors to adjust their content to the correct
levels. The new HDR features and functions are described on the following pages.
NOTE. Option PROD is required to access HDR features.
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Waveform display Dynamic Range setting. The pop-up menu for the Waveform display now contains
a selection for setting the Dynamic Range as shown below.
NOTE. When HDR or HDR Full is selected, you can use the Left / Right
arrow keys to toggle the vertical scale of the graticule between NITS, STOPS,
REFLECTANCE and CODE VALUE. The selected scale is shown at the bottom
of the display. (See Figure 5.)
Figure 1: Waveform display pop-up menu showing the Dynamic Range selection
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The following settings are available:
SDR (Standard Dynamic Range). Use this setting for conventional SD,
HD and 3G signals using ITU-R BT.709/2020 with OETF (Optical to
Electrical Transfer Function) gamma of 0.45 and with a display gamma EOTF
(Electrical to Optical Transfer Function) of 2.4 as defined in ITU-R BT.1886.
When SDR is selected as the dynamic range, the CONFIG > Graticules and
Readouts menu contains the following graticule settings:
STD. The Standard graticule is available in either millivolts (Normal) or
Percent and can be configured within CONFIG > Graticules and Readouts
> SDI Waveform Graticules.
NARROW. The Narrow graticule uses a NITs graticule scale and code
values, which is the traditional signal representation. This setting provides
a signal representation using a code value of 64 decimal (10-bit) equal to
0 mV or 0%, and a code value of 940 decimal (10-bit) equal to 700 mV
or 100%.
FULL. The Full graticule uses a NITs graticule scale and code values that
provides signal representation with a code value of 4d decimal (10-bit)
equal to 0%, and a code value of 1019 decimal (10-bit) equal to 100%.
NOTE. In SDI signals, the code words 0-3d and 1020-1023 are excluded and
clipped from a file that uses 0-1023 as the full range as definedinITU-R
BT2100.
HDR (High Dynamic Range). Use this setting if you need the bit depth to
more efficiently produce smoother blacks and brighter specular highlights.
When HDR is selected as the dynamic range, the CONFIG > Graticules and
Readouts menu contains the following graticule settings:
HLG(1200). The Hybrid Log Gamma (HLG) graticule is defined in
standard ARIB STD B-67 and was developed by the BBC and NHK.
SMPTE standard ST 2084 defines High Dynamic Range Electro-Optical
Transfer Function of Mastering Reference Displays also know as
Perceptual Quantization (PQ).
ST2084(1K). This graticule uses the ST 2084 curve with a maximum
value of 1000 Nits using the narrow range.
ST2084(2K). This graticule uses the ST 2084 curve with a maximum
value of 2000 Nits using narrow range.
ST2084(4K). This graticule uses the ST 2084 curve with a maximum
value of 4000 Nits using narrow range.
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ST2084(5K).Th
is graticule uses the ST 2084 curve with a maximum
value of 5000 Nits using narrow range.
ST2084(10K).This graticule uses the ST 2084 curve with a maximum
value of 10000 Nits using narrow range.
NOTE. Narrow range is defined by ITU-R BT.2100 as signal representation
with code value 64 decimal (10-bit) equal to 0 mV or 0%, and code value 940
decimal (10-bit) equal to 700 mV or 100%.
HDR Full (High Dynamic Range Full). Use this setting if you need the
High Dynamic Full Range defined by ITU-R BT.2100, which provides signal
representation with code value 4d decimal (10-bit) equal to 0%, and code
value 1019 decimal (10-bit) equal to 100%.
NOTE. In SDI signals, the code words 0-3d and 1020-1023 are excluded and
clipped from a file that uses 0-1023 as the full range as defined in ITU-R BT2100.
When HDR Full is selected as the dynamic range, the CONFIG > Graticules
and Readouts menu contains the following graticule settings:
ST2084(1K) Full. This graticule uses the ST 2084 curve with a maximum
value of 1000 Nits using full range.
ST2084(10K) Full. This graticule uses the ST 2084 curve with a
maximum value of 10000 Nits using full range.
Camera Log. Use this setting to use a graticule with a curve based on the
camera manufacturers specification. When Camera Log is selected as the
dynamic range, the CONFIG > Graticules and Readouts menu contains the
following graticule settings:
SLog. This graticule uses the Sony S Log curve.
SLog2. This graticule uses the Sony S Log2 curve.
SLog3. This graticule uses the Sony S Log3 curve.
CLog. This graticule uses the Canon C Log curve.
Log C.ThisgraticuleusestheARRILogCcurveat(ISO)El800.
BT.709. This graticule uses the traditional ITU-R BT.709 representation.
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HDR graticule selection. The CONFIG > Graticules and Readouts menu now
contains a setting for selecting the HDR graticule to be used by the Waveform
display: HLG(1200), ST2084 (1K), ST2084 (2K), ST2084 (5K), or ST2084
(10K).
Figure 2: CONFIG menu showing the SDI HDR Waveform graticule selection
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HDR graticule vertical scale setting. When an HDR graticule is selected for the
Waveform display, you can use the Left / Right arrow keys to toggle the vertical
scale units between NITS, STOPS, or REFLECTANCE. Camera operators can
use the graticule lines at 2%, 18% or 90% Reflectance to properly setup camera
exposure with a camera test chart of 2% black, 18% gray and 90% white.
Figure 3: Waveform display showing the HDR graticule with NITS selected as the vertical scale
Gain adjustment. When the ST.2084 (1K) or ST.2084 (10K) HDR graticules are
selected, a fixed zoom mode from 100 Nits to maximum scale is available by
using the Up arrow key to enable Zoom Mode and the Down arrow key to disable
Zoom Mode. When Zoom Mode is enabled, the Gain function and the Vertical
Position controls are locked in a fixed configuration. When in HDR modes,
Variable Gain will be enabled by default to facilitate the Zoom mode function.
Voltage cursors. When HDR or HDR Full mode is selected as the Dynamic
Range setting, the mV voltage measurement cursors are replaced by a set of Nits
measurement cursors.
6 Read This First for firmware version 3.4.X
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Picture display brightup
settings
The CONFIG > Display Settings > Picture Brightup on Luma Gamut Error menu
has new selections for HDR monitoring.
Off. For this setting, the highlight overlay is turned off in the picture display.
Luma. For this setting, the highlight overlay is turned on for Luma values
that exceed signal levels based on gamut thresholds for luma settings.
HDR Specular On. For this setting, the highlight overlay is turned on for
selected HDR settings and produces HDR zebra highlights in the picture for
large areas of the trace that exceed 100 nits.
NOTE. The HDR zebra highlighting allows users to verify the location and the
size of the specular highlights.
HDR Specular Full On. For this setting, the highlight overlay is turned on
for HDR Full settings and produces HDR zebra highlights in the picture for
large areas of the trace that exceeding 100 nits.
Figure 4: CONFIG menu showing the Picture Brightup on Luma/Specular Gamut Error selection
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Typical HDR
monitoring setup for
ST.2084 (1K or 10K)
The following figure shows a typical HDR monitoring setup for
ST.2084 (1K or 10K):
Tile 1: Waveform display with HDR graticule.
Tile 2: Waveform display with the HDR zoom mode enabled.
Tile 3: Picture display with specular highlighting enabled.
Tile 4: Video Session display.
Figure 5: Typical HDR monitoring setup for ST.2084 (1K or 10K)
8 Read This First for firmware version 3.4.X
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New features infirmware version 3.3.X
Firmware version 3.3.X introduces the new features and functions described on
the following pages.
Datalist display ANC Data highlighting. The following new ANC Data highlighting has been
added to the Datalist display (See Figure 6.):
Blue background highlighting indicates Ancillary Data
Cyan highlighting in an ANC Data packet indicates the checksum data
White text in an ANC Data packet indicates the packet header data
Green text in an ANC Data packet indicates user-defined data words
Red text in an ANC Data packet indicates a data word error
Figure 6: Datalist display showing ANC Data packet highlighting
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Switch line highlighting. New gold highlighting indicates a switch line. (See
Figure 7.)
Figure 7: Datalist display with switch line highlighting
Sample value readout. In full-screen mode, a new readout near the top right of the
Datalist display (See Figure 6.) provides a description of the selected sample. The
readout value depends on the type of the selected sample:
SAV/EAV Header: Values 0, 1, 2 (3FF, 000, 000)
SAV/EAV XYZ: F (Field: 0 = Field 1, 1 = Field 2) V (Vertical: 0 = Not
Blanking, 1 = Field Blanking) H (Horizontal: 0 = SAV, 1 = EAV)
ANC Data Header: Values 1, 2, 3 (000, 3FF, 3FF)
ANC Data (DID) Data Identifier
ANC Data (SDID/DBN) Secondary Data Identifier / Data Block Number
ANC Data (DC) Data Count
ANC Data (UDW[x]) User Data Word Number
ANC Data (CS) Checksum
Sample value shown in millivolts and (%) (See Figure 7.)
10 Read This First for firmware version 3.4.X
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