Speed modulation
The level of the shooting head is related to the landing spot in left/right and
front/back directions. (Under various serving sequence mode, the adjustment
can be done after pausing the machine).
Press down arrow to lower the shooting head. The landing spot becomes
shorter (close to the net).
Press up arrow to raise the shooting head. The landing spot becomes longer
(further from the net).
Ball speed can be adjusted in Working or Stand by mode. The stage-level light on the control box will
flash when the power is on.
If the stage doesn t need to be changed, press the start key directly to play. Otherwise, adjust the stage
level by pressing the Increase or Decrease key. There are a total of 10 stages from the lowest to
highest level. The top wheel and bottom wheel can work at the same time or work independently. The
higher the stage being selected, the faster the ball speed will become. Basically the speed of the ball is
proportional to the strength of the spin. If the stages of the two wheels are close enough, the ball would
barely be spinning. The control box also has a memory function that memorises the current setting,
making it capable to play with the same setting as the next time you start. Under various serving
sequence mode, the speed keys of the top and bottom wheels are locked. You can t adjust the speed at
this point.
Frequency modulation
Serving Curve/Loop
Loop modulation
With the same modulation method as the speed, the frequency can also be adjusted by pressing the
Increase or Decrease key with a total of 10 levels. The lowest stage of frequency is about 25 balls per
minute and the highest stage is about 95 balls per minute.
3
Increase key
Decrease key
Top-wheel speed
Bottom-wheel speed
Frequency
Start/Pause button
Summary of Contents for PP80
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