So this is a change from the status quo where actually transmitting an interfering signal is illegal to one where having a device that might theoretically transmit an interfering signal is illegal? It sounds like ordering all pencils be made illegal because they can be used to write threats.

I can see why they might want to make this change but I can't see how it can feasibly be defined and enforced without making every LC oscillator illegal. But like most legislation I suppose the reality, and reality of enforcement, don't matter so much as having the law to point to. They'll ignore it most of the time but chose to enforce it arbitrarily if someone rocks the boat. And it's quite a bit of a performative, "We're doing something." move.

>"These devices have no legitimate purpose, apart from assisting in criminal activity...

Expecting street cops to know RF electronics deeply enough to make these judgements of a "legitimate purpose" is beyond foolhardy and the claims of generalized signal generators as having no legitimate purpose is false. They would certainly consider my amateur radio lab equipment to be illegal.