Ground loop and Return Path: Twisted Pair vs Co-axial cable

[@Daniel-dk7do]

CONGRATULATIONS to your 100th excellent video, looking forward to many more :)

[@MachOneDesignEMC]

I actually did not count, Daniel! You know, I never bother about the number of subscribers, that is just for those who dedicate their channel to make profits, for us, we don't even have the channel commercialised. But I do hope more people will see my videos in the future. Right now, I think many people don't know about these videos, and each video took us a long time to make.

[@jluke6861]

Thank you.

[@Fusion12345]

Thank you so much for listening to our requests and making this follow up video. Now it's clear!

[@MachOneDesignEMC]

Thanks for supporting us, as I mentioned many times, this channel does not aim to grow subscribers, but we do hope the videos we make can reach more engineers, so our time is not wasted.

[@lambda7652]

If you put a clap around a cable to measure the current are you also changing the impedance of this path and thereby the current? T

[@tomasbergh]

Yes some, but these are high frequency RF probes so not much I suppose. /Tomas

[@MachOneDesignEMC]

According to D Smith, most RF current probes, if you terminate with a 50 ohm impedance, the impact on the cable being tested is quite trivial.

[@AlbertRei3424]

Can you focus on the impact of ground loop on emc?

[@MachOneDesignEMC]

Good suggestion, we will make more ground loop related video for the year of 2025. Stay tuned!

[@tomasbergh]

Thanks! What is the characteristics for those current-probes at 1khz, 10khz, 100khz and 1meg? /Tomas

[@MachOneDesignEMC]

depending on the model type, but you can find this info on Tekbox's website.

[@tomasbergh]

@@MachOneDesignEMC I already bought one! 🤣