Hacking a Police Radar

Hacking a Police Radar
YouTube player

Gregory “Mr. Vacuum Tube” Charvat (whose work was featured on the blog several times) breaks down an old school police radar:

It is amazing what additional information can be gained by modifying old equipment.

Here we connect the video output of an old police radar gun to the audio input of a laptop and applying basic signal processing techniques display doppler vs. time spectral plots of various targets.

Doppler signatures of birds, someone running, and cars are observed. Also relative radar cross sections of these targets are noticeable (cars are brighter than birds).

6 thoughts on “Hacking a Police Radar

  1. Hacking a Police Radar | My Daily Feeds says:

    […] Read the full article on MAKE […]

  2. fightcube says:

    Very cool! I had a similar idea years ago to make a video radar gun that would identify which car among a tight group of cars was speeding.

  3. 경찰 레이더 해킹하기 | Make: Korea says:

Comments are closed.

Discuss this article with the rest of the community on our Discord server!

My interests include writing, electronics, RPGs, scifi, hackers & hackerspaces, 3D printing, building sets & toys. @johnbaichtal nerdage.net

View more articles by John Baichtal


Maker Faire Bay Area 2023 - Mare Island, CA

Escape to an island of imagination + innovation as Maker Faire Bay Area returns for its 15th iteration!

Buy Tickets today! SAVE 15% and lock-in your preferred date(s).