Comment by jonhohle
2 years ago
My garage door opener works much better when it’s raining and also at night. I’m out case, our solar inverter (or one or more of the optimizers at the panels) creates enough noise to interfere.
I also believe our microwave is adding noise to the same circuit our WiFi router is on. Despite using 5GHz, WiFi is severely degraded whenever the microwave is on.
You should get a new microwave. It's probably not the mains circuit, it's probably leaking enough radiation to overload the RF frontend on the router.
If the router gets enough energy the "sine wave" of the radio signal starts to flatten out at the top and bottom and becomes a rounded off square wave which we call "clipping". This has the original frequency component, but also a ton of other frequency components that push up into much higher frequency bands like 5GHz.
Fun fact, this is why electric guitars add a high pitch scratchy noise, they're reaching the distortion/clipping threshold of their amplifier.