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> Learning Event 3: Adjust PPI Display on Radar Set - Continued - Mm500780059
Figure 48. Indicator, azimuth-elevation- range IP-800/FPN-40, surveillance display of time base sweep.
Figure 49. RANGE MARK GAIN control and RANGE NAUTICAL MILES switch in SEARCH 40-MILE position.
Adjustment of PPI, IFF, and Precision Display, and PPI Delay Control
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i. Rotate the
RANGE
MARK
GAIN control
R1512
clockwise until the
range marks appear on the time base sweep, located on the
synchronizer-
generator
, electronic-marker SN-386/FPN-40 (Figure 49).
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