[RFI] USB HUB noise

Jorge Diez - CX6VM cx6vm.jorge at gmail.com
Sat Nov 11 06:25:49 EST 2017


today I needed a RS232 to USB cable, and I found that I have one connected
to a USB hub, but actually disconnected from the radio. I use it to second
radio when doing SO2R, but after contests I take the 2nd radio to home,
just disconnected cable from radio and left USB side connected to USB hub

well, when i disconnected cable from the hub, I noticed that noise in the
radio drop a lot!

So now I am thinking the other RS232 to USB cable and other usb cables I am
using on this hub are making noise

Maybe the hub is a cheap and bad one?

Any recommendation for a noise free USB hub?


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