The Burst Electronics DG-4 is a high - end, full - featured digital test pattern generator. It supports multiple patterns and formats, including SMPTE 259M (SD) and SMPTE 274M/296M (HD) SDI. With 16 - Channel voice ID's, tones, analog genlock input, and analog black - burst output, it's a powerful tool for video system testing. The carefully chosen pattern lineup can expose system weaknesses. The moving zoneplate helps evaluate video compression and scaling, the pathological pattern stresses signal path PLL's, and the traveling image reveals dropped or repeated frames. There's also a white flash video pattern with an audio tone to measure audio - to - video encoder delays. The embedded voice channel ID repeats every 15 seconds, making audio channel monitoring clear. Standard level 1kHz and 440Hz audio tones are included for accurate system leveling, and you can select the DG4 digital audio output level according to US or European standards. The genlock input can match the output frame rate to the source, simplifying format selection. The DG4 also outputs an analog black reference in the selected format, allowing users to generate a time - adjustable reference signal. You can easily select test patterns, formats, and operational features on the front panel using smart pushbuttons and view them on a 20x2 LCD display. Technical specs: It has 1 genlock input (BNC connector, supports tri - level sync, analog SMPTE 274M, 296M, bi - level, analog NTSC, PAL, 1v p - p, frequency lock range +/-75ppm, Hi - z looping input) and 5 SDI outputs (BNC connector, SMTPE 274M/296M/259M standards, 800mv p - p, 75 - ohm impedance).
Using the Burst Electronics DG - 4 is quite straightforward. First, connect your system to the appropriate inputs and outputs. For the genlock input, use a BNC cable and make sure the source signal meets the specified standards. You can select the test pattern, format, and other operational features on the front panel using the smart pushbuttons. The 20x2 LCD display will show you what you've selected. When monitoring audio channels, listen for the embedded voice ID that repeats every 15 seconds. It'll tell you which audio channel you're hearing. To level your system accurately, rely on the standard level audio tones. You can choose the digital audio output level according to whether you're following US or European standards. As for maintenance, keep the device in a clean and dry environment. Regularly check the connectors for any signs of damage or looseness. If you're not using the device for a long time, store it properly. Avoid exposing it to extreme temperatures or humidity. If you encounter any problems, refer to the technical specifications in the product description or contact the manufacturer for support.
