OTR 1003

in Video Test & Measurement

Introducing the OmniTek OTR 1003 signal generator and data analyzer: a unique combination of high-precision video & audio analysis tools partnered with a comprehensive full-motion signal generator system. The OTR 1003 is compatible with all single- and dual-link SDI formats at 270Mb/s, 1.5Gb/s and 3Gb/s. The system also offers an optional physical layer analysis package, providing jitter measurements and the industry’s first production eye diagram display for 3Gb/s signals.

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System Overview

The OTR 1003 is supplied in an industry-standard 3RU rackmount enclosure. System control is via mouse and keyboard, with an easy-to-use graphical user interface. There are two SDI inputs and two SDI outputs, plus a reference analog sync input loop-thru (bi-level or tri-level) and an analog RGB/YPbPr component or composite monitoring output. There is a headphone socket for audio monitoring. The system has two DVI/VGA graphics outputs, capable of driving an external display panel at up to 2560 x 1600 pixels resolution. System data interfaces include dual gigabit ethernet interfaces and multiple USB ports.

The capabilities of the system are defined by a wide range of performance options, to allow users to configure the system to meet their exact needs. Most options are software-programmable, to allow new features to be installed simply via a download. However the physical layer analysis package and digital audio I/O interfaces are in the form of additional plug-in circuit cards, and the real-time disk recorder option requires the installation of multiple disk drives.

The OTR 1003 contains a unique flexible display manager, which allows the user to configure the screen displays to best suit their needs. Each window tile can be positioned and sized individually, and stored as a preset. When used with a high resolution graphics monitor, the system can display 1080p60 images with all the blanking areas at 1:1 size and full frame rate.

The OTR 1003 can also be controlled remotely, either via SNMP or a network-based client/server model which supports the control of multiple systems.

Signal Analysis Functions

Input Signal Status
Input signals are checked for errors and the presence of various kinds of metadata. Checks include SDI formatting, TRS and CRC/EDH validity; Picture freeze/mono/black detect; SMPTE 352M “payload ID” display; AFD, Video Index, and WSS aspect ratio controls; VITC, LTC, and ATC timecode monitoring; Range and gamut checks in RGB & YCbCr colour spaces; and subtitle display for EIA-608, 708, teletext and OP-47 data.

Picture Monitor
The OTR 1003 includes a high quality full frame-rate picture monitor display, which can be configured to show either the active picture or the entire raster with horizontal and vertical “pulse-cross” modes. Gamut and range errors can be highlighted on the picture, and there is a unique zoom view mode for high magnification of a user-selectable area of the picture.

Waveform Displays
The OTR 1003 contains OmniTek’s award-winning high resolution, user-adjustable waveform displays in YCbCr, RGB, Composite, and XYZ colour spaces. Multi-line, single-line, two-line, and frame-scan modes are available, while the colour components may be displayed as a horizontal parade, overlay, or vertical stack. A full range of H & V magnification functions are available, plus our unique region-of-interest control. Timebase and amplitude cursors are also available. The internal signal processing is performed to 12-bit precision, to maximize waveform accuracy. Arbitrary combinations of colour components may be displayed simultaneously. Gain, gamma, and persistence controls are available, and the waveforms may be individually colour-coded on the screen.

Colour Analysis Functions
The OTR 1003 provides up to four separate colour monitoring and analysis displays, to support users working in broadcast, QC, post-production, or digital cinema environments. There is a high resolution vectorscope with 75% and 100% graticules, offering region-of-interest, gain control, and luma-level qualification modes. The system also provides a colour gamut indicator display, which gives a real-time indication of the percentage of pixels which are outside gamut in any of the monitored colour spaces (for example as specified in EBU Recommendation 103). For post-production users, the VIEW_XR-DCI software option provides histogram displays in RGB, YCbCr, XYZ, and Composite colour spaces, and our new real-time CIE colour chart display, which provides a unique method for showing where source pixels fall inside or outside the colour gamut of a range of different display types and formats.

Pixel Data Display
The VIEW_DATA option adds a detailed pixel data display, showing the exact values present on the SDI inputs in decimal, hex, or binary numbers. The colour-coded display indicates different types of data, while a user-programmable ANC data packet reader decodes metadata for easy analysis. The display is compatible with dual-link inputs, and provides decoding of 12-bit pixel values or 4:4:4:4 data with alpha channel in YCbCr, RGB, and XYZ formats.

Audio Monitoring Capabilities
The OTR 1003 provides a comprehensive range of audio monitoring functions. The basic AUDIO option supports 16 channels of embedded audio and provides detailed input status, a wide range of PPM meter ballistics and graticules, loudness analysis to ITU-R BS.1770, surround-sound display and Lissajous figures. The AUDIO_DOLBY_D and AUDIO_DOLBY_E options provide full decoding of compressed audio inputs, including metadata analysis and A/V delay measurements. A decoded analog stereo pair is available at the headphone/line-out socket. The AUDIO_AES option is a separate hardware card, providing 16 channels of digital audio I/O. Digital input signals are routed to the various analysis displays, and the digital outputs may be selected from the Dolby decoder options or PCM embedded audio input.

Physical Layer Analysis

3Gb/s eye pattern with jitter meter & auto rise/fall/amplitude The EYE option on the OTR 1003 provides provides a full range of physical layer analysis tools for the SDI inputs. Note: An additional hardware plug-in card is required, which is available in SD-only, SD/HD and SD/HD/3G versions.

The EYE option provides accurate measurement of the amplitude of the incoming SDI signal, the bitstream rise and fall times, the overshoot/undershoot levels and the calibrated input cable length. The option also gives a detailed analysis of the bitstream jitter characteristic over various frequency bands, including the SMPTE specification jitter timing and alignment filters.

Two display windows are available with the EYE option. The first is the Eye Diagram display itself, showing the waveform of the input SDI bitstream calculated with an input bandwidth in excess of 10GHz. 2-, 4- and 8-Eye displays are available, in both equalised and non-equalised modes. Secondly, a Jitter Waveform display is available, showing the jitter amplitude with respect to time with a variety of different horizontal timebases.

Error Logging & Alarms

Main configuration menu for setting log parameters

Comprehensive error detection and logging is a standard feature on the OTR 1003. All the video, audio, and metadata parameters monitored by the system may be entered into an XML-format event log file, with time-stamping from input timecode or the system internal clock.

In addition, events may be configured to trigger alarms or SNMP network traps. Thresholds and timeouts for each monitored parameter are fully adjustable in the configuration menus. The OTR 1003 also uses a ‘traffic light’ colour-coded indicator system on the input status display, to indicate whether errors have been detected.

Closed Captions and Teletext Subtitles

The OTR 1003 contains a full closed caption decoder, with logging as standard. This is compatible with "Line 21" analog captions plus EIA/CEA 608-B and 708-B digital caption data. There is also an Enhanced Teletext subtitle decoder supporting specification level 1.5, including support for "OP47" digital ancillary teletext. Decoded captions of each type may be overlaid on the picture monitor display, and the actual caption data logged to XML files.

Multi-Channel Generation & Analysis

When equipped with the VIEW_2 option, the OTR 1003 can simultaneously monitor two independent SDI inputs. The full range of analysis functions are provided on each input, and the two inputs can be in different formats (SD, HD single-link or 3Gb/s type A).

The OTR 1003 contains a full closed caption decoder, with logging as standard. This is compatible with "Line 21" analog captions plus EIA/CEA 608-B and 708-B digital caption data. There is also an Enhanced Teletext subtitle decoder supporting specification level 1.5, including support for "OP47" digital ancillary teletext. Decoded captions of each type may be overlaid on the picture monitor display, and the actual caption data logged to XML files.

There is also a two-channel option GEN_2 for the test signal generator. This provides two independent output channels which may be in different video formats.

Test Signal Generator

Signal generator control window

The OTR 1003 provides several different test signal generator options.

GEN_BASIC simply provides colour bars and pathological matrix in the selected output video format. The more comprehensive GEN option provides a wide range of capabilities including many standard test patterns, fully programmable zone plate generator, still image play-out from a variety of different file formats, embedded audio tone generator, and user-selectable levels of gain, noise and bounce. User settings can be saved in custom setup files. There are also several metadata generation functions (detailed below).

The GEN_MOTION option allows the OTR 1003 to play out full-motion uncompressed video sequences. These may be in any standard file format, including AVI and WMV.

Finally the GEN_ADVANCED option contains our unique RVF file editor, enabling users to create and edit videoframes comprising the entire raster complete with H & V blanking. User-defined ANC packets may be inserted onto the output.

Standard Line Patterns
The standard patterns include a range of colour bars (including SMPTE RP219), frequency sweeps, multiburst, luma and chroma steps & ramps, pathological, and pulse & bar. Patterns are available in all video formats.

Zone Plates
The zone plate generator provides several standard zone plates as presets, plus a complete set of X, Y, and T adjustments. The basic waveform may be sine, square, or triangular, and may be applied to luma and chroma channels independently. User settings can be saved in custom zone plate files.

Still Image Play-out
The OTR 1003 can play out images stored in any standard PC file format (.bmp, .jpg, .tif, .yuv etc.). When the images are loaded into the system they may be re-sized to fit the current video output format, and the colour space is automatically converted using Rec. 601 or Rec. 709 matrices.

Ancillary Data
The GEN option provides the capability to insert VITC/ATC timecodes, wide screen signalling, RP186/ARD format video indexing, and SMPTE 352 payload IDs in the video output.

Full-Motion Play-Out
The OTR 1003 can play out full-motion uncompressed video sequences in any format. The sequence length is approximately 40 secs at SD rates, 7 secs for single-link HD, or 4 secs of 1080p60.

Embedded Audio Generator
The system provides a user-programmable 16-channel embedded audio tone generator, with 20- or 24-bits per sample at 48 kHz. Output frequency and waveform is user-selectable per channel.

Input Capture Functions

The standard OTR 1003 system can freeze & capture still frames from the SDI inputs. With the CAP_MOTION option, full motion sequences of frames may be captured directly into system memory for subsequent analysis. Sequence length limits are the same as for the generator option listed above.

There is also a CAP_ADVANCED option, to enable users to capture frames or sequences as full-raster RVF files with blanking data. This includes user-defined ANC packet extraction & logging capabilities.

Note that to play out any captured images or sequences, the appropriate generator option must also be installed.

Real-Time Disk Recorder

The OTR 1003 system supports multiple internal disk drives, which provide the capability for real-time capture and playback of long-form video and audio data in any of the supported video formats (including 3Gb/s). Please contact OmniTek for technical details.