| 摘要 |
PURPOSE:To readily conduct fine adjustment and inspection of a radar indicator display unit over the entire area by reproducing a signal recorded on a video tape recorder or an input video signal of the indicator to thereby form a signal similar to an actual echo. CONSTITUTION:The video signal, trigger signal and X,Y signals recorded on a video tape recorder 5 are reproduced and applied through video signal amplifier 6, trigger signal amplifier 7 and X-Y bearing forming unit 8, respectively to a radar indicator 1. The X and Y signals processed by the unit 8 are introduced through the bearing signal generator 1c of the indicator 1 to thereby form horizontal and vertical signals for a PPI scope by a gate sweep circuit 1d and to be indicated on the tube 1e in synchronization with the video signal. |
