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The portable EDD-6200P Time Lag Checker from For.A can measure the video delay time, audio delay time, difference between audio channels, and difference between video and audio by using TTC (Test Time Code) signals.
It generates TTC signals whose phases are the same as those of video, audio or VANC signals and outputs them as video, audio, or VANC. It measures video and audio delay time by routing video and audio signals back to the Time Lag Checker through the desired devices and lines, and by comparing the time from output to input (return). Additionally it also measures video and audio delay time of devices or lines by comparing phases of TTC signals that are routed back to the checker. It also estimates delay time in long distance with GPS by using 2 Time Lag Checkers.
3G-SDI, HD-SDI and SD-SDI Supported
The Time Lag Checker supports the following video and audio standards:
Video Standards: SMPTE 259M 270 Mb/s SD-SDI (D1 NTSC,PAL), SMPTE 292M 1.485 Gb/s, 1.485/1.001 Gb/s HD-SDI (1080i 50/59/60,720p 50/59/60), SMPTE 424M 2.97 Gb/s, 2.97/1.001 Gb/s 3G-SDI (1080p 50/59/60).
Audio Standards: AES/EBU and Embedded Audio (8 channel)
3G SDI: Level A YC4:2:2 10bit and Level B Dual-link YC4:2:2 10bit only
Long Distance Delay Measurements
Long distance delay measurements are possible using 2 Time Lag Checkers whose clocks are synchronized with a GPS clock. Audio and video delay time in long distance can be measured without GPS synchronization.
Measurements using GPS cannot be performed if 4 or more GPS satellites cannot be acquired due to the lack of antenna coverage or weather conditions.
Various Measurement Modes
This unit features various measurement modes like delay time of video and audio, video transmission delay time, delay time of video and VANC, audio transmission delay time, delay between audio channels in various combinations, and delay measurement of signals with different formats (with some restrictions).
High Accuracy Measurements
The accuracy of measurements is within 0.001 msec.
Within 1 msec for Embedded SD Audio. Excluding cases when GPS satellites cannot be acquired.
Different Measurements between Video & VANC
Differences between video and VANC can be measured by multiplexing TTC signals into VANC areas.
Built-in High Precision Clock (Synchronized by GPS)
In open air, synchronize the Checker's clock with a GPS clock. Once the clock synchronization is performed, the clock keeps time within 1 ms accuracy while GPS LED is lit green (about 3 hours).
In the Box
For.A EDD-6200P Time Lag Checker (Portable)
Limited 1-Year Warranty on Parts & Labour
Table of Contents
3G-SDI: SMPTE425M 1080p 50/59/60 (Level A YC4:2:2 and Level B YC4:2:2 10bit Dual-Link structure only)
HD-SDI: SMPTE274M 1080i 50/59/60 SMPTE296M 720p 50/59/60
SD-SDI: SMPTE125M 480i ITU-R BT656 576i