WARNING RADAR DISPLAYS PPI - PART 1 - INTRODUCTION [Main Title]
Naval instructional Film.
Revolutionary effect of radar. Description of the radar array on a Southampton class cruiser, including an airguard, seaguard and pointer. Distribution of PPI (Plan Position Indicator) displays throughout the ship. The film shows an azicator-height estimation equipment and then, in order to familiarise future operators with the controls and working of a display unit, a PPI is described in some detail, as regards information presentation, reporter working conditions, and alignment and calibration of the set.