s. On the precision display in the 10-mile range, there are 11
intensified vertical lines.
The eleventh intensified line is the
10-mile range mark.
This range mark is positioned approximately 1
inch from the right edge of the CRT (Figure 17).
t. When the PREC 10-MILE SWEEP control R1523 is adjusted
clockwise or counterclockwise, the right edge of the time base sweep
will move right or left.
u. Rotate 1523 (Figure 18) on top of SN-386/FPN-40 slightly
clockwise and counterclockwise while observing the precision display
on the radar CRT.
Figure 18.
SN-386/FPN-40 (top view).
15
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