Hi guys/gals, I'm not a newbie to linux, but computer talk is another language to me, so I'll explain my problem the best I can.
I've been using my pixel phone as a wireless hotspot for my Dell lappy for the last couple of years, and I kept getting an itchy ear (the right ear that is closest to the pixel phone, so after trying out all kinds of shielding (with the guidance of a microwave detector) I decided to try another way to connect to the net. (I don't have a landline)
I have now connected to the pixel phone via a long usb cable, and have shielded the phone by putting it in a steel toolbox with the opening facing the network tower (and away from me).
This works pretty good, but I'm still getting a microwave output from my laptop despite having all wireless connections turned off (even the physical button). There is a connection called "dummy" that must have been part of the proton vpn that I downloaded, and i can disable it for the session, but it comes back on when I reboot, is there a way to disable it permanently using a command in the terminal? I did find 2 commands that were supposed to work on another site, but a reboot brings this persistent dummy back.
When the dummy connection is turned off the system monitor doesn't show any wireless output, but my microwave meter shows that there is still a relatively strong signal being emitted from the front of the keyboard area. I took the back cover off the lappy and tried disconnecting the 2 wires that go the the lan module, but the signal persists. Is there something that I can physically unplug to stop all wireless transmissions? Thanks in advance for any ideas!

Welcome to LinuxQuestions.

Assuming that bluetooth is off if so equipped you are probably seeing a clock or bus signal. Putting the laptop in a shielded enclosure would be one simple way to lesson the emissions. You would need to use an external keyboard and corded mouse.

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Yes, I have disabled the bluetooth driver. I'd rather kill the signal output rather than smother it in a shielded box. So how do I get rid of a bus or clock signal?

What is the exact frequency and how strong is the signal?

You can not kill all clock or bus signals because that is how a computer works. It is very difficult to have zero emissions unless you have extensive shielding. Typically now days the cpu clock is in the order of 3+ GHz.

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The signal strength floats around from .001 to .03 mw/m2, and the frequency isn't registering on the meter (which covers 100 MHz to 8GHz , so whatever is causing the signal obviously must be under 100 MHz or over 8GHz. What other frequencies would a laptop emit other than the 3 ghz from the cpu? I'm thinking that some thick foil over the front of the keyboard area might block most of it, but I'd prefer to kill the signal if that's possible. Thanks for the replies