Sorry, microwave ovens operate at 2,500 mHz.
Too many other uses for the 900 mHz
What is all the concern about ants in the cat food? Cats have cast iron stomachs. Ever see what they bring in to eat from the outside?
Besides, the ants add to the protein content of the cat food.
LOL
I had a “Frigidaire” microwave 35 years ago that I am virtually certain operated at 900 MHz. However, I agree that 900 MHz is a very busy place.