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Controls. The cathodedot is pulled upward following the shape of the transmitted ray tube is one of the most important pulse. As the radio wave continues toward the target, the dot parts of a radar set. It may be thought of also moves at a constant rate of speed from left to right, as the information center of the leaving a trace behind it. In other words, we can look at the equipment. dot and see what the wave is doing. All cathode-ray tubes have certain characteristics in common. For one thing, all use an electron beam which produces a spot on the screen.
The "E" unit system of discussing echo strength is standard in the Navy. It is a convenient system to use; by providing common terms in which to discuss the strength of echoes confusion and misunderstanding are reduced. A small pip about the same height as the grass is an E-1 echo. It will always he difficult to detect, and only a wide-awake operator will notice it. An echo of this strength will probably he overlooked on a PPI scope by even the very best operator. That is the main reason that an operator should not devote all his attention to the PPI scope.
Since they control the back-and-forth position of the dot, they are called the horizontal deflection plates. It is obvious that by merely varying the vertical position and the horizontal position of the dot, you can make the dot take any position you want, anywhere on the screen. Consequently, by adjusting the voltages on the two sets of plates properly, you can make the dot appear at any place on the screen. You can make it move in any definite manner by changing the voltage on one or both sets of the plates properly.