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Speaking of RF interference.

For the first time I bought myself nice headphones. And for some reason, unlike previous headphones, I can now hear very clear buzzing patterns any time my phone gets a Signal message.

I don't get it. It's not SMS, it's Signal messages over LTE. And the phone isn't connected to my headphones in any way.

And it just really diminishes my enjoyment of these things.




I'm guessing your headphones are wired? Move your phone and/or its charging cable.

If your headphones are wired into the back of a desktop, bad power shielding in your desktop itself can cause similar problems. An external dac can isolate your headphones from your desktop.


Oh you know what, I think you just helped me realise what might be the culprit. The cable in these headphones is like 8 feet longer than my cheap-o-phones and so I've run it around the back and to the side of my desk and the back out front.

As a result I probably changed how my headphone cable behaves as an antenna compared to the shorter cable that went straight from laptop to my ears.


I can't tell you how to fix it, but it is pretty common. You can put your phone on top of a speaker and hear some clicking a couple of seconds before you get a phone call for example.


It's all to do with cheap and nasty design and the watered down EMC Immunity standards.

Rather than meet an appropriate level of RF Immunity, the Manufactures/Importers lobbied the FCC to permit Lax standards and instead rely on a FCC Part 15 Compliance sticker which reads "...this device must accept any interference received, including interference that may cause undesired operation".


I used to get terrible GSM buzz on my speakers, but that was many years ago. Since switching to LTE I've not noticed it.




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