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First time asking a question but I've come across something I just can't find the answer to. Whether or not it's because a silly question I hope to find out.

So I understand that with crosstalk occurs when an 'aggressor' AC signal is driven, and capacitive and inductive coupling happens. I know that a steady state DC signal cannot couple to another signal, however can the reverse happen? Can an AC signal couple to a DC signal? For example a signal line next to a VDC line.

Thanks in advance for any assistance, and again, apologies if it's a silly question.

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  • \$\begingroup\$ Welcome to EE.SE! What frequency are we talking about? \$\endgroup\$ – winny Jan 16 '19 at 17:20
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Yes, AC noise can couple onto a DC line. The only thing that matters about the receiver is its physical shape and position, not what signals are on it.

This is a basic question, by the way, but that doesn't make it a bad question. I don't think it's been answered on here before, so it's worth having just in case someone else has the same question in the future.

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  • \$\begingroup\$ You're welcome, hope it helped. \$\endgroup\$ – Hearth Jan 16 '19 at 19:37

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