Military-grade RF surveillance coming to your neighborhood! - Dad Ruins Leonardo's SignalTrace

Our Take

Credit to Dad, the engineer for pulling back the curtain on Leonardo's SignalTrace, a sensor package built to bolt onto the ALPR poles already standing at intersections across the country. The pitch has always been "we only read plates, not people" — SignalTrace quietly retires that promise. Once you're pairing RF emissions from phones, earbuds, smartwatches, and tire pressure sensors to a plate read, you're not tracking a car anymore. You're tracking a person, their gear, and their movements, in real time, with no warrant and no public vote on whether that upgrade should happen.

The tire sensor angle is the part that should worry people most. You can leave your phone at home, but you can't easily strip the TPMS chip out of your car, which means the one gap privacy-conscious drivers thought they had is closing. And because this rides on infrastructure your town council already approved for "just" plate reading, there's no new zoning hearing, no new procurement fight — it's a firmware and hardware add-on to gear that's already live. That's the mission-creep playbook in a nutshell: get the pole approved for one narrow purpose, then quietly upgrade its capabilities every year without asking anyone again.

If you want to know how many of these poles are already near you, check our camera map, and if your city hasn't had a real conversation about what these systems can be upgraded to do, use our take-action resources to force that conversation before the RF sensors show up too.