I have worked with automation and control in factories, industrial buildings, oil, water, gas, electricity, and renewables. At the home level, I have installed Wiser and several other control systems. I have a smart water meter at the end of my drive, which transmits less than 25mW at 868MHz from beneath the pavement to a pole nearby. In my retirement, I have become a bit of an automation anorak.

I built a full-size aerial loop when I was 14 in an attempt to overcome the jamming of RNI. I now have one of those Tecsun loops.

The RFI here seems to reduce slightly when I switch off the mains. There is a residual high level of noise, but the RFI does not reduce much as I walk away from the house. There are no nearby overhead cables or masts (except for the low-powered water mast).

I need to check further for interference from rogue devices.

I have ordered one of those miracle Qodosen AM only receivers from Amazon, and a corresponding loop aerial from Bangood. My RFI investigations will continue.

https://www.amazon.co.uk/QODOSEN-DX-286-Automotive-Shortwave-Attenuator/dp/B0D3V3H356/ref=sr_1_1?crid=1T9M13FWXONQZ&dib=eyJ2IjoiMSJ9.NeC6Wx26RF-s1j0Pdrq-tQ.UcLid5N86Ss_ojL08uGdcnzDARgDzkqP1gKBNZPPj54&dib_tag=se&keywords=qodosen&qid=1726317395&sprefix=qodosen%2Caps%2C144&sr=8-1