Ever wish you could build a radar system like the ones used on space missions and spy satellites? Want to do it for less than $250? Well then, Greg Charvat has the solution for you, with The $240 High Resolution X-Band Linear Rail SAR Imaging System. By using his intellect and skillfully mining ham radio swap meets, he was able to build a working synthetic aperture radar (SAR) capable of capturing high resolution scans of tiny things. For instance, the above message was actually written in push pins, hidden behind a foam plate.
Ok, the directions are a bit sparse, and you will need some extra components that aren’t included in that price (such as a PC capable of driving the system), but it’s still a pretty impressive feat. Here are some of the features of the system:
- High-resolution X-band rail SAR developed for $240
- Built in my garage and basement
- Built from surplus microwave components
- Point-to-point wiring and other construction techniques
- Utilizes a Geni garage door opener screw-drive for a linear rail
- Surplus cordless drill planetary gear set transmission coupling