USB 3.0 interference with 2.4Ghz devices

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buddee
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PostPosted: Sat Dec 08, 2012 0:50    Post subject: USB 3.0 interference with 2.4Ghz devices Reply with quote
A little while back i read an article on intel's site regarding usb 3.0 interference with 2.4Ghz devices, so i decided to share this article just for good reference:

http://www.intel.com/content/www/us/en/io/universal-serial-bus/usb3-frequency-interference-paper.html

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Vaako
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PostPosted: Fri Feb 15, 2013 22:10    Post subject: Reply with quote
Very interesting article!!!

Yes, the USB 3.0 is an disturbing factor in the 2.4GHz if not proper shielded.

High quality Enclosures and Cables are recommended i'm afraid Wink

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buddee
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PostPosted: Mon May 27, 2013 13:40    Post subject: Reply with quote
Yes, on the newer units that have a USB 3.0 port, i am seeing decent copper shielding in place, so this may not be so much of a problem, but time is still needed to see.
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evilkitty
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PostPosted: Sat Mar 22, 2014 4:11    Post subject: Reply with quote
if you would just link to the PDF i can scroll that would be great
http://www.intel.com/content/dam/www/public/us/en/documents/white-papers/usb3-frequency-interference-paper.pdf
almost said i am too lazy to read this when i found the pdf link
looks like as long as i am not using a usb3 device i should be fine for the most part, i have to only have 1 piece of usb3 hardware and that is my laptop

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artintel
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PostPosted: Tue Apr 15, 2014 2:20    Post subject: Reply with quote
Wait... so if I plug a USB 3.0 memory stick into my computer & my router is literally 3 inches away from the usb 3.0 port.... i could be getting serious interference? Or is this one of those 'barely noticeable' issues....
mittelhessen
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PostPosted: Wed Aug 13, 2014 11:33    Post subject: Reply with quote
artintel wrote:

... so if I plug a USB 3.0 memory stick into my computer & my router is literally 3 inches away from the usb 3.0 port.... i could be getting serious interference?


Yes, maybe it can but it doesn't have generally. It might depend on the connected device and the device which provides the USB-port. I think this problem is really critically, because more and more wifi-routers are equipped with USB 3.0 ports for using as NAS and so on.


Last edited by mittelhessen on Thu Dec 18, 2014 10:30; edited 1 time in total
akopps
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PostPosted: Sun Jun 07, 2015 9:27    Post subject: Reply with quote
I can indeed confirm that there can exist a serious interference between USB3 and 2.4GHz wireless. I own a laptop with internel USB2-only ports, but it also has a StarTech USB3 expresscard that's connecting to a USB3 hub with various devices, including hard drives. For a while I have been wondering how come I am observing a massive difference in downloads over wireless-n 2.4GHz. Uploads could run as fast as 9MB/second, while downloads could run at 6MB/second, and sometimes bog down to 3MB/second. Everything went to normal after unplugging the express card. Once I observed this issue, I decided to keep using USB3 and switch to 5GHz band. That meant buying a new AC router. (My old WDR3600 had a really lousy 5GHz signal and reception).
gatorback
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PostPosted: Tue Jul 28, 2015 2:43    Post subject: Reply with quote
I have a new RT-AC68U and just installed a USB 3.0 memory stick. Can I expect that there should be no issues if I were to remove the USB 3.0 memory stick or is there an oscillator that runs whether or not the a device is connected to the USB 3.0 port?
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bobs
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PostPosted: Mon Jan 25, 2016 17:31    Post subject: Re: USB 3.0 interference with 2.4Ghz devices Reply with quote
buddee wrote:
A little while back i read an article on intel's site regarding usb 3.0 interference with 2.4Ghz devices, so i decided to share this article just for good reference:

http://www.intel.com/content/www/us/en/io/universal-serial-bus/usb3-frequency-interference-paper.html


We are going to 5Ghz (and 60 Ghz) anyway, but, always use good cables with a ferrite choke to eliminate interference.

https://en.wikipedia.org/wiki/Ferrite_bead
consorts
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PostPosted: Sun Nov 26, 2017 16:10    Post subject: Re: USB 3.0 interference with 2.4Ghz devices Reply with quote
i just got a usb3 stick to add to my dd-wrt router, so i'm glad i noticed this thread. what i may do is simply put the stick on a M:F 3' usb3 extension shieldedcord to make it more distant from the 2.4 sticks. we could just wrap the usb3 stick in tin foil, but they can get hot so it's best to not potentially insulate them.
gordonhayward
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PostPosted: Wed Nov 14, 2018 6:03    Post subject: Reply with quote
Thank You for Your Kindness.
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