The simple fact that I can see my food through the glass door is all the proof I need that some radiation is getting out.
p.s. yes my real name is Captain Obvious.
Boffins' lunches have been fingered as the source of a long-standing mystery: the peryton, which clouded discussions of the origin of Fast Radio Bursts (FRBs). Perytons have some similarities to FRBs (such as signal dispersion), but scientists were always fairly certain that their origin was terrestrial. At Parkes, for example …
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Well "sealed" does not necessarily mean "perfectly sealed". Essentially something like 99.99% of the radiation stays in and heats your food. The rest is irrelevant. If it was only keeping 90% in, you'd not only waste energy, but the radiation levels outside your 700 Watt microwave oven would start to become unpleasant.
The remaining radiation certainly shouldn't be large enough to cause an "all sky" event at a rather remote radio telescope, except of course for when you open it to soon.
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Uhm, first of all 0.7 Watts would kill every wireless LAN in the building, and that's the concern, not some weird concern about radiation.
"2000 watts of energy" I'm sorry, but that phrase kinda disqualifies you. Plus you're not likely to see a lot on your spectrum analyzer as the frequency is rather low. You don't actually get a wave with a coil fed with 20-50 kHz. Without a secondary winding (i.e. a pot) the energy will just oscillate between the inductivity and the capacity.
Unless you're in North America. Channel 13's restricted to low power use, and its damned close to a restricted area of spectrum at 2483.5 Mhz. I really doubt anyone would come after you for using it but playing games with the FCC is like playing games with the IRS. They can make your life very difficult if you give them a perceived reason to do so.
Some linear fluorescent tubes emit broadband interference when they come to the end of their working lives because the plasma discharge becomes unstable and "hoots" at RF.
Confirmed that with light on the signal here drops from 5 down to 2 bars and also affects 3G as well as IR remote control on helicopter which crashed to the floor the second the light was turned on.