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Microwave as ad-hoc Faraday cage? (slrpnk.net)

submitted 8 months ago by MalReynolds@slrpnk.net to c/privacy@lemmy.dbzer0.com

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Just occurred to me that the humble microwave should be a fairly effective Faraday cage, certainly for the microwave spectrum, anyone know how good it is for the relevant communication frequencies?

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[–] quediuspayu@lemmy.dbzer0.com 5 points 8 months ago (2 children)

Considering there's a thing emitting at 800-1000W in there I would say they are pretty effective faraday cages.

I've never had any interferences.

[–] lurch@sh.itjust.works 3 points 8 months ago (2 children)

I played online games with some people who mentioned their wifi signal drops whenever someone operates the microwave in the kitchen. (Also, other people had problems when certain old neon lights next to their room were on.)

[–] Scheisser@sh.itjust.works 1 points 8 months ago (1 children)

Are they opening the door while its running? Turning it off before opening the door might help.

[–] lurch@sh.itjust.works 1 points 8 months ago (1 children)

I have never encountered a microwave oven that wouldn't immediately shut down the magnetron when the door is opened.

[–] Scheisser@sh.itjust.works 1 points 8 months ago

They do, however they can release a short burst of radiation after the door has opened and before the oven turns off that can affect wireless networks.

[–] quediuspayu@lemmy.dbzer0.com 0 points 8 months ago

I've never had that problem, a few minutes ago I tried to make a call and put the phone in the microwave, the moment I closed the door it cut the call.

I'd be worried if I had a leaky microwave.

[–] Showroom7561@lemmy.ca 2 points 8 months ago* (last edited 8 months ago)

I've never had any interferences.

All my microwaves in the last 20 years cause interference from several rooms away! Like Bluetooth headsets dropping signal.

I have a device that measures radiation and EMF, and that thing spikes when the microwave is on, too. 😮