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Product Description

The DG4 is a full featured, multi-pattern, multi-format, SMPTE 259M SD and SMPTE 274M/296M HD SDI test pattern generator with 16-Channel voice ID's and tones plus analog genlock input and analog black-burst output. The pattern lineup was specifically chosen to expose system weakness and limitations. The moving zoneplate is used to qualify video compression and scaling. The pathological pattern is used to stress the PLL's in the signal path.

The embedded voice channel ID repeats every 15 seconds, leaving no doubts or confusion about what audio channel is being monitored. In between the voice ID's are standard level 1kHz audio tones for the "right" and 440Hz audio tones for the "left" within each group. The dwell is approximately 1 sec of voice and 14 seconds of tone. The inclusion of standard level tones permits very accurate system leveling. The DG4 digital audio output level can be selected for the US -20dBFS or the European -18dBFS standard output level.

• White flash video pattern with coincident audio tone to measure the audio-to-video encoder delays
• There is even the traveling image which moves smoothly and randomly about the screen to reveal dropped or repeated frames

• Weight: 3.4 lbs