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Step 4 Level the tripod
a. Turn the sighting unit on the tripod tabletop until the laser aperture facing the throwing circle or the take-off
board. The laser aperture is located on the opposite side of the laser from the eyepiece.
b. Turn the precision level adjusters (labeled "h" in the sighting unit diagram) until the bubble is centered in the
middle of the round level.
c. Locate the additional cylindrical levels on the sighting unit. Continue to move the precision level adjusters until
the bubble in all of the cylindrical levels is also centered.
NOTE: When you turn the sighting unit toward the landing sector, the bubbles in the levels should remain
centered.
Step 5 Connect the laser to the computer
a. Connect the serial cable to the sighting unit. Remove the black rubber stopper from the port below the laser
aperture and connect the cable to the port.
b. Connect the serial cable to the FieldLynx computer’s serial port or USB-Serial adapter. Use the extension
cable provided if needed.
Step 6 Set up the target pole
a. Screw the prismatic reflector into the target pole, turning until secure.
b. Flip the target pole so that the prismatic reflector is touching the ground.
If you are measuring a throwing event:
a. Ask someone acting as a marker to set the target
pole in the center of the throwing circle.
b. Have the marker face the prismatic reflector
toward the laser aperture on the sighting unit while
holding the target pole as upright and as still as
possible.
If you are measuring a horizontal jumping event:
a. Ask someone acting as a marker to set the target
pole on the Near corner of the take-off board. This
is the corner that is closest to the laser on the
edge of the board closest to the pit.
b. Have the marker face the prismatic reflector
toward the laser aperture on the sighting unit while
holding the target pole as upright and as still as
possible.
Step 7 Use the site to find the prismatic reflector
a. Turn the rotation release knob counter-clockwise so that the sighting unit moves freely on its base.
b. Turn the tilt-release knob counter-clockwise to unlock it.
c. Look through the site on top of the sighting unit and rotate the sighting unit until you can see the target pole
while looking through the site. Once the target pole is in view, turn the rotation release knob clockwise to lock
it.
Step 8 Focus on the prismatic reflector
a. Now that you have the prismatic reflector in view using the site, look through the eyepiece on the sighting unit.
b. Turn the large, fine adjustment knobs beneath the smaller rotation and tilt release knobs until the prism is
centered when looking through the lens.
c. Notice that the eyepiece has two adjustment rings. Turn the smaller adjustment ring until you see crosshairs
when looking through the lens.
d. Turn the larger adjustment ring on the eyepiece to focus the prism until the image is crisp. The crosshairs on
the lens should center on the middle of the prism.
