I've just installed two super new RFI generators
The induction hob is just wonderful for cooking, can't be left on inadvertently, doesn't even get hot, but when it's on it generates enough 20kHz and harmonics to wipe out LW, MW, and up to 49 meters. A battery charger / pulse reconditioner is just wonderful for charging old batteries and also wipes out the FM band, but at least you can choose when to use it!