video test pattern generators

Programmable Video and Audio Test Generator with DVI Output The Extron VTG 400DVI is an advanced, programmable, and upgradeable Video and Audio Test Generator that delivers accurate, full bandwidth video signal reproduction and high performance audio test signals. This test generator is a professional quality reference tool for set-up, performance evaluation, calibration, and troubleshooting audio and video systems.
The VTG 400DVI offers a comprehensive array of video test patterns, as well as a suite of audio reference signals. High resolution RGB computer video is output simultaneously on BNC and 15-pin HD connectors. NTSC and PAL video is output simultaneously as RGB, component video, S-video, and composite video, while audio output is both balanced on XLR and unbalanced on a 3.5 mm mini jack. A DVI-D output is included on a female DVI-I connector. Additionally, the LCD of the VTG 400DVI is capable of displaying the native resolution of a DVI device when new EDID data is received.

The VTG 400DVI is designed for universal video display compatibility. A total of 113 output scan rates are pre-programmed which include high resolution computer video, HDTV, NTSC, and PAL. Up to 180 additional rates can be programmed into the VTG 400DVI. The audio test generator is fully compatible with professional and consumer audio equipment, and delivers accurate performance for microphone level inputs while being phantom power resistant.

Operation of the VTG 400DVI is intuitive and convenient, with an easy-to-read LCD screen on the main panel, direct access buttons, and memory presets for quick saving and recall of user settings. The test generator can be programmed and upgraded with custom scan rates through the RS-232 port using the included Extron control software.

A powerful and innovative feature is the Patented Scope-Trigger™ output, which enables analysis of a selected area within the video image using an oscilloscope. Scope-Trigger delivers quick and easy oscilloscope operation with minimal effort. Any desired location, or pixel, within a video image can be accurately targeted and then simultaneously examined on an oscilloscope via a precisely timed trigger signal from the VTG 400DVI.

Housed in a rugged, lightweight metal enclosure, the VTG 400DVI is ideal for both field and permanent AV applications.

- Video outputs: RGBHV on BNC and 15-pin HD connectors, component video on BNC connectors, S-video on a 4-pin mini DIN connector, composite video on a BNC connector, and DVI-D on a female DVI-I connector
- DVI, RGBHV, component video, S-video, and composite video output
- LCD displays native resolution of the DVI device when new EDID data is received
- 34 video test patterns — Includes multiple crosshatch patterns, color bars, PLUGE, crop patterns, geometry, grayscale, and alternating pixel patterns, as well as flat field, window, checkerboard, hum bar, and Patented CTF Contrast Transfer Function patterns with adjustable levels. The CTF pattern is covered by US patent 7,369,159.
- Seven audio test signals — Includes sine waves, square waves, pink noise, white noise, polarity, frequency sweeps, and sine wave bursts with selectable frequencies and output levels.
- 113 selectable output rates, including high resolution computer video, HDTV, and NTSC/PAL video — Provides 113 factory scan rates for RGB or HD component video, as well as standard definition component video, S-video, and composite video. Also accommodates up to 180 additional user-defined scan rates.
- 183 user-defined, custom output rates — Custom output rates can be programmed into the VTG 400 Series to accommodate new or unique display resolutions
- Patented Scope-Trigger™ expedites signal/system troubleshooting when using an oscilloscope — An innovative feature that enables analysis of a specific area within the test pattern image using an oscilloscope. This feature is especially helpful in identifying signal and display imperfections. US patent 7,394,474.
- Four Quick Select memory presets — User settings, including output scan rates and test signal selections, can be saved to and recalled from four memory presets via direct access buttons.
- Broadcast quality video encoder — Ensures compliance with SMPTE and NTSC/PAL standards for accurate video performance.
- Auto Sequence mode — Specific test patterns can be selected for a repeating sequence with selectable time intervals.
- Selectable RGB color output — The red, green, or blue color channel can be enabled or disabled via the set-up menu.
- Auto-memory recall — Settings are saved when the VTG 400DVI is turned off and automatically recalled when subsequently powered.
- RS-232 control port for custom scan rate programming, firmware upgrades, and control with Extron SIS™ Simple Instruction Set
- Screen Saver mode — An adjustable timer can be set to engage the VTG 400DVI in Screen Saver mode, with either the video output muted or as a repeating sequence of test patterns.
- Main panel security lockout — All main panel controls except the power button can be locked out to prevent unauthorized use or tampering.
- Rugged metal enclosure — Appropriate for field use, but can also be placed on a desktop. For added protection and portability, a soft nylon carrying case is included.
- Highly reliable, energy-efficient internal universal power supply — The 100-240 VAC, 50/60 Hz, international power supply provides worldwide power compatibility with high demonstrated reliability.