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¢Â Tektronix WFM601A Waveform Monitor
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Standard Definition Waveform Monitors

WFM601A • WFM601E • WFM601M

Features & Benefits

  • Two 270 MB Serial Component Loopthrough Inputs
  • Real-time CRT Display Suitable for Live Monitoring
  • Waveform Parade and Overlay Displays
  • Waveform Display in RGB or Y-Pb-Pr Levels
  • Bright Line Select Display
  • Component Vector Display
  • Tektronix Lightning, Bowtie, and Diamond Displays
  • Picture Display of Y Channel
  • Identification of Embedded Audio Channels
  • RGB or Y-Pb-Pr Analog Picture Monitor Outputs
  • Switched 270 MB Serial Component Picture Monitor Output
  • Waveform Cursors and Markers
  • SMPTE RP-165 Digital Error Detection and Reporting
  • Tektronix Arrowhead Display of NTSC/PAL Gamut Limit
  • Nine User Front-panel Presets
  • Environmental, Safety, and EMI Certified
  • Three-year Tektronix Warranty
  • CE Marking

Applications

WFM601A
  • Video Monitoring for Graphics Workstation, Telecine, or Camera Setup Operators
WFM601E
  • Evaluation of Digital Transport Layer in Operating Centers
WFM601M
  • Data Analysis for Installation and Maintenance

Serial Component Monitors

WFM601A/WFM601E/WFM601M monitors are self-contained, half-rack wide, waveform/vector monitors for the 270 MB serial component operating environment. They share a common design philosophy but are specialized for different applications.

The WFM601A is an operational monitor providing the signal monitoring features useful to the graphics workstation, telecine, or camera setup operator.

The WFM601E extends the WFM601 platform to provide a more comprehensive evaluation of the digital transport layer and is used in digital production and master control operating centers.

The WFM601M offers all of the video features of the WFM601A and WFM601E, and provides data analysis capabilities for the installation and maintenance engineer.

WFM601A Serial Component Waveform/Vector Monitor

The WFM601A monitors 270 MB serial component data signals which may be connected directly through two high-quality passive loopthrough inputs. This allows monitoring of the digital signal path without adapters or other add-on devices. The selected input data is evaluated for correct format and status, and the equivalent analog video signal is displayed in a traditional form allowing accurate monitoring and adjustment of source or processing equipment.

WFM601A/WFM601E/WFM601M monitors offer the conventional analog displays familiar to Tektronix component signal monitor users. Digital monitoring is as familiar and as useful as viewing an analog component signal.


Digital signal is decoded for analog display in native Y-Pb-Pr format.


Tektronix Lightning display allows quick setup of color-difference format recorders.


RGB format may be selected for camera, telecine, or color graphics applications.

Operating adjustments and measurements are made to the same signal parameters. Setup of digital sources is as easy as if they were analog.

In addition to waveform overlay and parade displays of the three component channels, WFM601 Series monitors feature three Tektronix-patented displays. The Lightning display helps operators quickly set up color-difference component recorders using the standard color bar test signal. Using the Diamond display, color graphics operators can easily determine whether creative effects are reproducible in legal RGB color space, and will be warned that values outside the diamonds may cause recording, transmission, or reproduction errors. An important feature in the WFM601A, WFM601E, and WFM601M is the Tektronix Arrowhead display of video signal composite domain gamut limits. This display clearly illustrates how the component video signal will translate into a luminance + color subcarrier signal to be transmitted as an amplitude-modulated NTSC or PAL signal. The creative operator can use this display to assure intended color and luminance values can be maintained through a composite transmission system.

All models include analog outputs for an RGB or Y'P'bP'r component picture monitor. A switched digital output is also provided for the all-digital plant.

The WFM601A is an operator's monitor, for use by a person responsible for the look and continuity of the television picture. It instills confidence that creative adjustments can be made without violating transmission standards, thus assuring trouble-free distribution throughout a facility. The WFM601A is the only model of the series featuring an analog audio Lissajous display.

WFM601E Serial Component Monitor with Eye Pattern

The WFM601E extends the series platform to provide comprehensive evaluation of the digital transport layer. It allows observation of the analog characteristics (Eye Pattern and signal level) and digital compatibility (format and range checking) of the serial data stream. The WFM601E includes all video features of the WFM601A and adds an analog waveform display of the incoming data signal.

WFM601E Features Include:
  • All video features of the WFM601A
  • Eye Pattern view of the incoming data signal
  • Eye Pattern timing cursors with selectable jitter display, including high-pass filtering
  • Eye Pattern voltage cursors to indicate amplitude of the incoming data signal
  • Cable length readout, calibrated in meters
  • Received signal power readout
  • Source signal level meter, independent of cable length
  • Extended format checking and data error detection
  • Display of field check sums for fixed pattern testing

The WFM601E's wide bandwidth Eye Pattern display is an amplitude vs. time view of the 270 MB data signal's analog transmission path. It displays peak jitter and amplitude errors and, because it is looking at the actual signal path, provides a useful indication of any reflections due to impedance irregularities. The Eye Pattern is displayed at video sweep rates to provide correlation with the video signal, and a word-correlated mode may be selected by more experienced users to observe pattern-dependent crosstalk. Digital signal amplitude and jitter is measured in accordance with SMPTE-compliant high-pass filtering, assisted by time and voltage cursors.


Tektronix Diamond display indicates legal RGB color space.

A serial signal level meter, calibrated in meters of equivalent coaxial cable, provides a check to determine how close a system may be running to one important failure point. The voltage level of the data signal at its source is indicated, independent of cable length, to avoid potential equalization errors.

Format checking and reporting are expanded in the WFM601E. Format violations are sensed and clearly reported, and when the EDH signal is present, digital errors in the active picture or full field are reported. A CRC checksum is provided for manufacturing environments where it is common to use fixed pattern test signals to confirm the data integrity of signal processing products. The CRC is calculated for each field of video and displayed on the error screen. If the test signal CRC is known, this allows a data integrity check to be made, allowing limited error checking when EDH is not present in the incoming signal. ANC data identification includes any embedded audio channels present. Format checking provides confidence that checked parameters meet industry requirements for subsequent data recovery.


Arrowhead display indicates that colors will be legal in subsequent composite formats, without use of a composite encoder.

WFM601M Serial Component Measurement Set

The WFM601M is a measurement-quality serial component monitor with all features of the WFM601E. The WFM601M features additional digital analysis capabilities important to those involved in the design, installation, and maintenance of 270 MB component digital systems.

 

   
 
 
 
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