- Some large media buildings have radar antennas.
The military has a very precise radar system.
This warship is equipped with the most advanced radar system.
A good radar system is very expensive.
Radar was invented by mankind before the Second World War.
Radar is widely used in transportation, including navigation and aviation.
Britain and Germany were the first countries to develop radar.
The early use of radar was to assist steel cargo ships at night or in fog.
Early radar antennas were fixed.
Today's radar has many functions and is widely used.