PRGR HS-130A User Manual page 13

● To perform measurement when practicing pitching, set up the device behind the catcher (in the
location where the umpire would normally be).
* Measurement may not be possible for balls that enter the shade created by the catcher.
Example of measurement using
When measuring at the set-up positions described above, the speed of the ball immediately
before being caught by the catcher is measured.
Because this is the speed actually experienced by a
element for determining the quality of a pitch. Although it may vary depending on the type of
ball and the ball spin, this speed will be 5 to 10% slower
speed of the ball when leaving the pitcher's hand).
(Example)
Final speed: 63 mph
[Measurement from Shooting/Throwing Side (Initial Speed
Measurement) | Soccer Ball Example]
● Set up the device as shown below.
* When shooting by placing the ball in front of the device, the speed of the leg used to kick the
ball may be measured, resulting in a measurement slower than the actual shooting speed.
* Always check the surrounding area for safety.
from the side of the ball
Shooting
direction
a tripod
Regarding Ball Final Speed
1 ft or less
Example of measurement by a
batter, it is considered an important
than the general pitch speed (the
Example of measuring shooting speed
12
coach or manager
Initial speed: 70 mph