The size of the things you can see depends on the wavelength of the light.<p>FM Radio (100MHz) has 3m wavelength. You&#x27;ll need a giant camera and will be able to see only very big structures.<p>Wifi&#x2F;Microwave&#x2F;Radar is in the Gigahertz range. 2.5GHz == 12cm wavelength. For radar photos, you&#x27;ll need a very big camera, and a human would be only a few pixels big.<p>Some airport scanners are based on millimeter waves (teraherz radiation), and you can find sample photos online. They produce pretty blurry pictures, but clothes become partially transparent.