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Use a laptop as a mobile wireless power meter
Authored by: ALT147 on Apr 08, '10 05:56:31PM
Actually, they are microwaves, and, interestingly, they are at almost the same frequency (2.45 GHz) as those in your microwave oven. I'm not sure why that band was chosen.

But, in any case, the power present in your oven is in the hundreds of watts to kilowatts, whereas the power level sitting a metre away from a strong wireless router is less than -20 dBm, which is 0.00001 W. The power from the router I'm connected to now is -84 dBm, which is less than 0.00000000001 W. So we're probably OK.

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