I see the BBC reporters don't understand RFID tags.

But they are.

"Passive tags collect energy from a nearby RFID reader's interrogating radio waves."

Someone should tell them that converted shipping containers are usually fully isulated and quite habitable.

Except they *are* they get parasitic power from the device that is scanning them ...

Most of them kind of are powered by radio waves but they do not need that much power as the whole thing is a close coupled system as indeed are the cards that are contactless.

I'm sure we all remember Crystal sets which were powered by the signals they received. I built a single transistor one using an old Germanium transistor when I could see and that was even more efficient if you were in a high signal area. Brian

Yes I wondered about that it would take a lot of work to make a shipping container bad, indeed some are used as workshops, You can fit them with windows and outside cladding.

Brian

As you haven't posted the link to check ...

ITYF that the claim that they are uninhabitable is because the specific properties provided are too small for the number of people allocated to them (and don't have self contained access to bathrooms)

not that a property made from shipping containers is inherently uninhabitable

tim

No they aren't. They are powered by induction from a bloody great coils and a little coil.

No they don't they are powered by the magnetic field. You try beaming RF at them and see what happens. A tiny dipole should be enough to get an RF signal to one if you want to waste your time.

I thought it was a magnetic coupling

my household alarm system box doesn't have space for a "bloody great coil"

but that doesn''t change the laws of physics

Have you extracted an M&S smart tag from any of their clothing?

My door entry system gas a pad about an inch square where the keyfobs go.

Owain

Looks more like a tuned antenna to me, there's a gap in the printed track which the 0.25mm^2 slither of silicon sits across.

"Converted shipping containers are increasingly used by councils to provide temporary accommodation for homeless families. While some families prefer them to B&Bs because they have their own self-contained bathroom and kitchen, they are regarded as too hot in summer and too cold in winter."

Are you a Remainer? It's the sort of daft statement only you and the likes of MM would make.

Correct, a RF field has both electric and magnetic components.

Linked fluctuations of electric and magnetic fields. Radio waves.