It occurs to me that the HF noise issue is going to get far worse.
At the moment I am lucky having a fairly low noise floor, but more people will, rightly, be getting cars that don't depend on fossil fuels. Wireless charging of these could raise local noise levels still further. There is a danger that HF bands and down could become unusable with weak signals. Narrow-band modes could be better. In the future there could be a big market for noise cancellers to help reduce noise from certain sources. Noise nullers usually work with one noise source and not white noise.
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