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A comment on USB 3.0* Radio Frequency Interference on 2.4 GHz Devices (2012). Parent comment

Re:USB 3.0* Radio Frequency Interference on 2.4 GHz Devices ... by galangalalgol on Monday March 29, 2021 @11:08PM (#26630916)
Its not just 2.4 that usb3 kills. I've had it jam gps from a couple feet away and thats down at 1.3. Did some emi tests, it was really broadband interference. I really have no idea how these chipsets got approved.
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Re:USB 3.0* Radio Frequency Interference on 2.4 GHz Devices ... by cozzyd on Tuesday March 30, 2021 @12:59AM (#26631399)
GPS is sub-thermal noise and the receivers don't have a ton of dynamic range. Your GPS may not have a good filter on it and might be saturating, rather than necessarily broad-band RFI.
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Re:USB 3.0* Radio Frequency Interference on 2.4 GHz Devices ... by galangalalgol on Tuesday March 30, 2021 @07:48AM (#26633480)
We put the device with usb on it in an emi chamber and watched it on a spectrum analyzer. Unless it was in a taped box there was a mountain of noise.
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