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Figure 6-17.-Video converter video processing block diagram
BITE Subsystem

Aviation Electronics Technician 1 (Organizational)
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Table 6-2-Sync Generator Outputs SYNC GEN OUTPUT UNIT SUPPLIED Beam gate only TV camera Cathode drive TV camera Dark current drive TV camera Horizontal current drive TV camera Vertical deflection drive TV camera Composite clamping TV camera Scanner sync Scanning optic unit Horizontal sync Gimbal angle indicator (GAI) Composite blanking GAI, video processor Vertical blanking Gimbal angle indicator Composite sync Video processor Gray scale signal Video processor Horizontal clamping Video processor indicator (GAI) modules. These signals are listed in table 6-2. The sync generator module also generates a gray scale signal upon receipt of a gray scale command signal from the IRDSC. The IRDSC generates this command whenever the gray scale switch is turned on. The gray scale signal presents a gray scale pattern (fig. 6-19) on the video indicator. The pattern serves to aid the operator in adjusting the level and gain controls on the IRDSC. There is a total of ten different shades. Each shade represents a different IR temperature range to which the operator can compare the target intensity and estimate the temperature of the target. The temperature is an indication of the type of target material. The video processor receives raw video signals   from the TV camera. It also receives gimbal angle Indicator synthetic video, gray scale signals, composite sync, composite blanking, and horizontal Figure 6-19.-Gray scale video indicator presentation. 6-16







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