Page 116 OmniTek XR User Guide, Software Release 2.3
Use of an external analog reference also allows differences between different input
channels or between channels on different SDI inputs to be determined – as follows.
1. Use the steps given in the previous section to determine the timing of one of the channels
of interest relative to the analog reference.
2. When that measurement has been made, click the Save Offset button.
3. Use the Source toolbar and the Options menu as described in the previous section to
switch the Delay Measurement window to working on the channel you want to compare
the above result with.
4. Click the Rel To Offset button to toggle between seeing the delay of this second channel
relative to the analog reference and its delay relative to the saved offset.
The timing of other channels can be determined relative to the first channel by repeating
Steps 3 and 4.