| 摘要 |
<p>PURPOSE:To attract the operator's attention by flickering only the signal of a specified target among all detected signals on a CRT display once by a different color for a short time. CONSTITUTION:The signal received by an antenna part 1 is amplified and guided to a first electron gun 2a, which lights display dots that are treated e.g. by a fluorescent material P33 of a fluorescent orange color showing long afterglow. The signal is displayed on the color CRT3. The color CRT3 also has the display dots which are treated e.g. by red and green fluorescent materials showing short afterglow and are lighted by second and third electron guns 2b and 2c. The signal of a ship is displayed by the mixed color of green and orange at first, and then displayed by the orange colored afterglow after a very short period of time based on the operation of a switching circuit 8.</p> |
