Transceiver

[Watson]

I think this exists, but I can't figure out how to search for it. I recall seeing something like a pong monitor that showed a flashing dot. But in this case it showed the reflection of a specific material. The device sends out a UHF or VHF signal. The signal is reflected by the reflective material back to, and shows up on the monitor.
Does this sound familiar to anyone, or was I dreaming?

[someguy1]

I think this exists, but I can't figure out how to search for it. I recall seeing something like a pong monitor that showed a flashing dot. But in this case it showed the reflection of a specific material. The device sends out a UHF or VHF signal. The signal is reflected by the reflective material back to, and shows up on the monitor.
Does this sound familiar to anyone, or was I dreaming?

Radar?

[Watson]

Yes but a very low tech model.

[Watson]

I think it s a UHF/VHF type transmitted signal against a resonating material, with the modified reflected signal shown on a monitor or radio-scope of some sort. Hmm....I thought I was making some search progress, but looking back, it seems vary similar to the original thought. Keeping on....