A height finder radar is a specialized device used to accurately measure the height or altitude of an object or aircraft. It is commonly used in military operations to track enemy aircraft or to aid in navigation. However, there are several other terms that can be used interchangeably with the term 'height finder radar'. These include 'altitude radar', 'elevation radar', 'aircraft height tracker' and 'flight altitude sensor'. Each of these terms denotes the same device, and all perform the same essential function of accurately measuring the height of an object or aircraft, making them valuable tools in numerous applications.