RE: RE:SMETS26 Mar 2019 19:35
About to change soon. Not in a bad area and working ok. I know from experience that self healing wireless mesh networks were being used for intruder systems as far back as 15 years ago albeit range of about 30 m between devices, this has if course now vastly improved. There is also wireless kit available to transmit CCTV data signals over long distances, 3 years ago I was involved fitting these and sending signals over 1\2 mile easily, just need to connect to a WAN point the other end. On that basis anyone within a reasonable distance to a Wan could connect.
Not sure how much if the UK geographically cannot get a mobile signal but doubt it's very much if there are any residences nearby. I'm on BT mobile and cannot recall not being able to gets signal.