A radar gun uses the Doppler Effect to detect the speed of objects. It transmits electromagnetic waves, which bounce off the object it is pointed at, returning to the device at a slightly different frequency. The radar detects the change in frequency, then computes this into a speed measurement.
There are many ways that such radar can be used in fitness testing, such as to measure the speed of a runner or throwing implement. See our page about using Radar in Fitness Testing.
Using a Radar for Sports
The radar can be held in the hand or placed on a tripod. To get correct speed readings most radar guns will need to be placed directly in the line of travel of the object to be clocked (in front or behind), otherwise only a component of the true speed will be measured.
Features to Look For
- Recording of instantaneous speed and average speed
- Measures from a distance
- A large speed measurement range with good accuracy
- Speed recall feature, storing a number of the recent measurements
- Voice notification announcing the speed reading
- Bright led display for easy visibility during the day
- Display in miles per hour and kilometers per hour
- Ability to connect to a other monitor for display, and for downloading data.
- Ability to calibrate
- Using Radar in Fitness Testing.
- Procedures for Sprint Testing
- Buy Timing Gates
- Photo Finish Sprint Timer Phone App
- Timing devices for vertical jump testing: Optojump Next, Chrono Jump, Jump Laser and JustJump