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Magnetron insulators
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BrokenYugo:

--- Quote from: tom66 on December 31, 2021, 05:15:28 pm ---Most Wi-Fi routers and user devices implement "microwave oven avoidance".  Either they use the region code or the RF measurements to determine when the microwave is not actively transmitting and transmit in that period.  Most microwave ovens use simple capacitive voltage doublers which leads to a quiet period at 50 or 60Hz during which time transmission can be scheduled.

I do wonder how this applies to ovens that use inverters, as they use a power-factor correction circuit that should ensure current through the magnetron is a sine wave at 100Hz, which should mean overall utilisation of the 2.4GHz band is closer to something like 70-80% rather than the 40-50% of a traditional microwave.

--- End quote ---

The only inverter microwave I'm familiar with is an older Panasonic that kills all wifi communication in the room. The home theater receiver has a wireless stereo speaker unit that uses B/G wifi channels for the link, you can hear the magnetron cathode heating up before the audio cuts out entirely and it's about 4 meters from the microwave. It has always done that so I assume it is safe/normal operation.
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