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A robot lawn mower - LMR24 uses a wire loop to define the area within it should cut the grass. The loop is fed with a strong wideband signal that extends to about 10 MHz and radiates although with a low efficiency at frequencies where the loop size is not small compared to the wavelength. The loop is typically large so the near field may extend well above 100 meters. In this video you can see how pulse interference of this kind can be removed in the time domain with noise blankers and in the frequency domain with notch filters. Noise blankers are difficult when there are also many strong signals present, but notch filters do work but need manual control if one wants to listen to AM stations because removing all narrowband signals would also remove the AM Carriers.

Ik overweeg een robotmaaier, heeft er iemand ervaring ?