Learning Event 3:
ADJUST PPI DISPLAY ON RADAR SET AN/FPN-40
1.
Learning Event 3 will enable you to locate and identify control
indicator group OA-2664/FPN-40 components, and PPI display adjustment
controls, as well as interpret information displayed on the cathode
ray tube (CRT) of radar set AN/FPN-40.
2.
Location and initial settings of components and controls.
a. Locate INTENSITY control R2404 on indicator azimuth-elevation-
range IP-800/FPN-40 (Figure 13).
b. Locate the following controls on the front panel of the
synchronizer generator, electronic marker, SN-386/FPN-40 (Figure 46).
(1) RANGE NAUTICAL MILES switch S1501.
(2) SEARCH VERTICAL CENTERING control R1504.
(3) SEARCH HORIZONTAL CENTERING control R1505.
(4) RANGE MARK GAIN control R1512.
Figure 46.
Synchronizer-generator, electronic-
marker SN-386/FPN-40.
46
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