3-6. SYNCHRONIZER AND INDICATOR SYSTEM
Range sweep, 0-15 KM bottom to top of scope, RANGE
SELECTOR switch in 15KM position, intensified band
must be visible and variable by AT101.
Azimuth sweep, left to right of scope
Azimuth strobe, thin vertical line that moves from
left to right of the scope as determined by the movement of
delta and lower beam azimuth handwheels.
Range strobe, thin horizontal line (two lines if
range shift is on) that moves from bottom to top of
the scope as determined by the movement of delta and
lower beam range handwheels.
Short gate, range selector at 3. 75KM position.
3-7. RECEIVER SYSTEM
Video. Background noise and or targets. Adjust
video gain to maximum clockwise.
IF gain. Adjust to the lowest comfortable level.
Observe video with beam video switch in upper, lower,
and both. With beam video set to upper and then to lower,
observe for a slight amount of flickering of the video.
Sensitivity time control (STC). The reduced
portion of video beginning at the bottom of the scope and
extending vertically to a range of approximately 2. 5KM
range mark switch must be on.
Ready light. Should come on after 5-minutes
sometimes it may be necessary to wait longer than