The Bushnell Speedster is a handy, multifunctional speed gun for all sports enthusiasts. It tracks the speed (in miles per hour or kilometers per hour) of everything from pitching speeds, tennis serves, and downhill skiers to cars at the racetrack. It can measure the speed of a baseball at 6 to 110 mph from over 75 feet away and the speed of a racecar from 6 to 200 mph at over 1,300 feet away. The Speedster also enables you to keep statistics for baseball and softball.
| |
| The easy-to-read screen can be formatted to track a series of measurements and keep a running tally of the average speed, making it ideal for analyzing baseball pitches, tennis serves, or speed-per-lap. | |
It features a highly legible four-row LCD graphics display, trigger, and a two-way button pad. The Speedster uses digital technology and DSP (digital signal processing) to provide instantaneous and real-time speed measurements of 1 mph speed accuracy. Speedster FAQ
What is the Bushnell Speedster used for?
The Bushnell Speedster can be used to accurately measure and display speeds of many of your favorite sports. It can track speeds of baseballs, softballs, tennis balls, and can be used in ice-skating, auto-racing, horse-racing, track, and other sports where speed is crucial to success.
What technology does the Speedster consist of?
The Bushnell Speedster contains a K-Band microwave RF (Radio Frequency) transmitter whose signal gets reflected by the target object. The reflected signal will have a "Doppler Shift" proportional to the target speed. This Doppler frequency shift is detected in the receiver, amplified, filtered, and then digitized in an Analog to Digital Converter (ADC), and passed onto the Digital Signal Processing (DSP) chip. Using complex algorithms, the DSP chip filters out false and low level return signals, to identify and display the speed of the desired target. The speed along with various statistics and averages are then displayed on the LCD display.
What is radar?
Radar is an acronym for "Radio Detection And Ranging
How does the Speedster work?
Once the trigger is engaged, the Speedster transmits radio frequency energy in the form of waves. The radar transmits 24 billion RF cycles of energy per second at the speed of light, which is 186,000 miles per second. The Speedster measures the difference between transmit and receive signals and relays this information to the DSP to quickly calculate +/- one MPH speed accuracy.
How is speed calculated?
Speed is the difference between the transmit frequency and receiver frequency (also known as the "Doppler" shift).
How accurate is the Bushnell Speedster?
The Bushnell Speedster provides +/- one-MPH speed accuracy.
How does the user need to be positioned in relation to the moving object?
The Bushnell Speedster works best when positioned in front of or behind the moving object.
Can speed radar guns read the speed of an object moving in any direction?
No, Doppler radar can only read the relative speed of targets moving either to or from the radar.
Does angle effect accuracy?
A 12-degree angle should not effect performance. The Speedster can achieve +/- 1-MPH speed accuracy to a baseball at 75 feet away at a 12-degree angle or less. A 20-degree angle at 60 feet away would result in +/- 3-MPH accuracy.
What is the distance that the speed of a baseball, softball or tennis ball can be read?
0-75 feet away.