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-6.5-
Problem Probable causes or check
points
Remedy
Poor discrimination in range 1 Sea clutter control not
functioning properly
1 Improper setting of A/C SEA control. If
A/C SEA is seen only at very close
range, suspect inaccurate frequency of
reference oscillator.
True motion presentation not
working correctly
1 Poor contact of MODE
key
2 Selection not accessed
3 Speed entry incorrect
4 TM display inaccurate
1 Try to press MODE key a little harder.
2 Press MODE key until TM appears.
3 Enter correct own ship speed adequately
4 Make sure that speed and compass
inputs are accurate.
Target nottracked correctly 1 Poor definition of targets
in sea clutter
1 Adjust A/C SEA and A/C RAIN controls
adequately.