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Why would a non-wireless router emit so much radiation?
I have a TP-Link router and it's not a wireless one, yet it seems to emit quite a strong magnetic field of almost two metres, as it causes interference with my baby monitor. Should I be concerned about this? Or is it normal for a router to emit so much radiation? The thing is that the router is under my desk right where I sit to work!
Any piece of modern digital electronics emits electro-magnetic interference. The very high speed circuits invoved (several MHz clock frequency) conduct through copper traces on the circuit board in the thing. The copper traces act like antenna and thus emit the "noise" you hear on Your Baby monitor.
Even the power supply for your router could be the culprit. To achieve small size and high efficiency, the power supply "brick" will often contain high speed electronics which could also be the source of the emission.
Finally, the typical baby monitor is a pretty low quality electronic device. It lacks selectivity and is likely picking up noise from frequencies that are not important to it. A different brand monitor might not suffer this problem.
Also, better quality routers would enclose their circuit boards in a metal housing. Such enclosure would contain the EMI in a so called Faraday cage. I suppose you could put your router in a metal box and accomplish the same thing now.
Astrobuf
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