[RFI] USB Cable Shield Resistance was: Re: [N1MM+] open question about RFI & USB

Pete Smith N4ZR pete.n4zr at gmail.com
Tue Jan 16 09:32:01 EST 2024


Interestingly, I just tested the shielding on a USB A to USB C cable I 
have, which looked like it should be fine, with a transparent jacket 
over woven shielding and a big ferrite bead - about 1 meter long, and 
measured 2.7 ohms - not good.  What should be consider to be the upper 
permissible shield resistance?

Moving this issue to the RFI reflector now...

73, Pete N4ZR

On 1/16/2024 5:01 AM, Janez Majdic via groups.io wrote:
> Maybe also good to read:
> https://www.yoctopuce.com/EN/article/usb-cables-shielding-matters-as-well
>
> Regards, Janez - S51J
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