Radar!
As far as I know, radar was invented by a Hungarian scientist named Zoltan Bay. That radar was first used in World War II by the British troops.
No world is a stage, and you cannot detect a helicopter unless you have the radar station (radar alone is not sufficient)
Normal radar sends out radio waves to determine the location of an object. Doppler radar can not only find the location of an object or storm, but using something known as the Doppler effect can determine how fast it is moving towards or away from the radar.
tracking radar
It is when the radar system is able to continuously track a target as the target moves.
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what do the colors mean on ghost radar classic
When a radar has you marked for sure.
when you activate ghost radar classic, it will periodically say a word. what do these words mean?
Radio
radar
Radio Detection and Ranging
Not being noticed.
Radar. You might mean echolocation. Bats are a good example
The acronym ROT can mean many things. It could mean "right on time", "Republic of Turkey", "radar-only tactic", "registered orthopedic technologist", or "radar on target".
When someone says a guy is under the radar that usually means they think you're gay. They usually say "gaydar".
Assuming you mean the wavelength: Radar can use electromagnetic waves of VERY different frequencies; see this section of "Radar" in Wikipedia: https://en.wikipedia.org/wiki/Radar#Frequency_bandsThe list also includes the corresponding wavelengths; or you can divide the speed of light by the frequency.