| 摘要 |
PURPOSE:To readily conduct fine adjustment and inspection of a radar indicator display unit over the entire area by applying a signal received by a television camera on an input video signal of a radar indicator to thereby form a signal similar to an actual echo. CONSTITUTION:A picture taken by a television camera 4 is applied as a video signal through a video amplifier 1a and high voltage power supply 1b of a radar indicator 1 to an indicator display tube 1e. On the other hand, a bearing signal is applied as a gate sweep signal from an external bearing signal generator 3 through the bearing signal generator 1c and a gate sweep circuit 1d of the indicator 1 to the tube 1e, and also to deflection amplifier 5 for the horizontal and vertical deflection of the camera 4. The video signal is indicated on the tube 1e in a manner that the television camera 4 is synchronized with the indicator 1. |
