Is it possible that when my microwave is turned on, the wifi signal becomes weaker?

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Questa volta abbiamo cercato una curiosità scientifica: Is it possible that when my microwave is turned on, the wifi signal becomes weaker?

Ed ecco le risposte degli esperti:

If you have a wifi network on the 2.4 GHz band, then yes.

Microwave ovens also work on 2.4 GHz, so they could interfere with wifi. Microwave ovens are shielded to prevent the radiation from leaking out, but if the shielding is in somehow deteriorated, there may be some leakage. A typical microwave oven that’s active can emit 10,000 times more microwave radiation than a wifi router, so even a small amount of leakage can interfere with signals.

Yes, older WiFi devices work on 2.4 GHz, and even modern devices support that because it works better over longer distances, microwaves also run at that frequency, and despite all the shielding some microwaves still leak out and can cause interference, but it depends on the microwave and the WiFi

Actually the short answer is no… it cannot “make the signal weaker”…. but the end result is the same. It cannot possibly weaken the signal but as it runs in the same bandwidth frequency… that the information packets can be carried (ie carrier waves)… it will causing interference. Which just mean the signals will get garbled in the noise and make it so that you cannot receive all of the useful packets for your WiFi needs… by loosing it into the background noise that covers up the signal….

It’s essentially a microwave “scrambler” by “smoking out” the signal. Several other things that operate around your house can also cause interference because they use the same wavelength for carrier waves…. if you live in an apartment with other people using 2.4ghz WiFi or other things… you are likely to also have a bit of interference causing you to have to move closer to your router so that it’s signal is stronger than the other background noise of other devices operating at or near 2.4ghz…

Proximity is your friend… but you might also be able to change the “channel” of your router to a channel that isn’t so… used…. some phone programs will let you “sniff” or listen to that frequency of radio wave and can tell you what frequencies are in high usage and what channels will give you less interference overall increasing its ability to perform without getting smoked out by everything else….

If everyone talks at the same speed, rate, and pitch in a room full of conversation…. it becomes very hard to differentiate one person from another… let alone hear the words in the context of each individuals conversation to understand their message…. the closer you are to a person the more likely you are to understand them… but there are several other people near that it makes you have to be much more close to the person to whom you wish to hear their conversation…. everyone else is lost to the noise….


As mentioned before, yes microwaves operate in the 2.4 gigahertz range. You may also have issues based on power variance in the microwave itself. Typically when you are running the microwave for an extended period of time (typically I have found the time is around 90 seconds) the microwave will ramp up its power to full wattage. So you may not see as much of an issue while running it for say 30 seconds, but if you are microwaving a potato for 8 minutes you will have wifi issues.