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Gobi , 12-31-2024, 02:39 AM

Hi @Robert Feranec, Good Day!

Currently watching your videos on crosstalk with Eric Bogatin where he simulated near end cross talk and far end cross talk using Hyperlynx.

I am having a doubt in near end cross talk where near end cross talk in victim line rises earlier to aggressor line signal rises.

I am a bit confused with this behaviour. Please let me know your valuable thoughts which will be really helpful for me.

QDrives , 12-31-2024, 08:22 PM

Can you make a screenshot and not a photo. I cannot read the one you show. If this is from the video, can you post a link with time position too?

Robert Feranec , 01-02-2025, 11:30 AM

maybe this can help https://www.youtube.com/watch?v=EF7SxgcDfCo

Gobi , 01-06-2025, 04:16 AM

Thanks for the response @QDrives and @Robert Feranec

I have gone through the shared video and it seems the cross talk starts rising at the beginning of aggressor signal edges.

But in our case, my understanding is still the victim line near end cross talk rises before the aggressor line edge starts rising.

I am attaching the screenshot and video link for easy reference.

Gobi , 01-06-2025, 04:17 AM

https://youtu.be/5EeQPxRdurk?t=803

Gobi , 01-06-2025, 04:17 AM

QDrives , 01-06-2025, 04:41 PM

The green line is the signal **after** the transmission line. The blue is is from before the transmission line.
The signal needs time to move.

Gobi , 01-07-2025, 03:52 AM

Yeah, I always need to remember that signals is moving in the transmission line. Hope now I got this clarified. Thanks for the inputs.