Bushnell Speedster Radar Gun
by Bushnell
(Click here)
Digital Photo Product Details
Manufacturer: BushnellModel: 2831
Product features:
- Applications are endless, from measuring pitching speeds, tennis serves and downhill skiers to cars at the racetrack
- Measures the speed of a baseball from 6-110 mph at 75 feet
- Speed of larger objects like race cars can be measured from 6-200 mph at 1300 feet
- Features large LCD graphics display and two-way button pad
- Uses 6 AA batteries
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Digital Cameras Photo Reviews of Bushnell Speedster Radar Gun
Customer Review: "Speedster" Delivers Quality at a Great Price
Summary: 5 Stars
After reading the four previous customer reviews and giving a lot of thought to what was said, I decided to buy the Speedster. Fortunately, my gamble paid off. After a day of use, the Speedster appears to be all it's advertised to be. Though the battery compartment latch and the fastening point for the carrying strap could be improved upon, the rest of the design is impressive. It only took a minute to get used to knowing when to pull the trigger (to activate the radar beam) and when to release it ("locking in" the reading). In practice, I was able to easily read the speed of pitched baseballs from about 50 feet away, but later in the practice, I was surprised when I found I couldn't read any of the pitches. On a hunch, I asked the pitcher to use another ball, and I found I could read everything again. There must've been something about the troublesome ball that scattered or absorbed the signal, preventing the gun from calculating the speed of the pitch. It's unfortunate that a previous reviewer chose to return his gun when he might've been having a similar problem. By the way, just for grins I clocked the speed of a van driving past my house, and the gun worked like a champ. One final point: I can't say I agree that the trigger design is inadequate. The trigger isn't meant to be depressed more than 1/10" or so, and if you use it as intended, I can't imagine it breaking. The bottom line - the Speedster is well worth the [money] I paid through Amazon.com - buy it with confidence.
Description of Bushnell Speedster Radar Gun
The Bushnell« Speedster? is a handy, multi-functional speed gun for all kinds of sports enthusiasts. Tracks miles (or kilometers) per hour of everything from pitching speeds, tennis serves and downhill skiers to cars at the racetrack. Measures the speed of a baseball at 6-110 mph from over 75 feet away and the speed of a race car from 6-200 mph at over 1300 feet away. Also lets you keep statistics for baseball and softball. Features highly legible 4-row LCD graphics display, trigger and 2-way button pad. The Bushnell Speedster uses digital technology and DSP (Digital Signal Processing) to provide instantaneous and real-time speed measurements of +/- 1.0 mph speed accuracy.Amazon.com Product Description The Bushnell Speedster is a handy, multifunctional speed gun for all sports enthusiasts. It tracks the speed (in mph or kph) of everything from pitching speeds, tennis serves, and downhill skiers to cars at the racetrack. It can measure the speed of a baseball going 6 to 110 mph from over 75 feet away and the speed of a racecar going 6 to 200 mph from over 1,300 feet away. The Speedster also enables you to keep statistics for baseball and softball.
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| 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 car speed per lap. |
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 use?
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 the speed of the desired target. The speed, along with various statistics and averages, is then displayed on the LCD.
What is radar?
Radar is an acronym for radio detection and ranging.
How does the Speedster work?
Once you press the trigger, the Speedster sends out 24 GHz radio waves at the speed of light, which is 186,000 miles per second. It measures the difference between the signal it transmitted and the signal bounced back to it and relays this information to the DSP to quickly calculate the speed of the object with an accuracy of +/-1 mpg.
How is speed calculated?
Speed is calculated using the difference between the transmit frequency and receive frequency (also known as the Doppler shift).
How accurate is the Bushnell Speedster?
The Bushnell Speedster is accurate to within +/-1 mph.
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 radar guns determine the speed of an object moving in any direction?
No, Doppler radar can only determine the relative speed of targets moving either toward or away from the radar.
Does angle affect accuracy?
A 12-degree angle should not affect performance. The Speedster is accurate to within +/-1 mph for a baseball 75 feet away at an angle of 12 degrees or less. A 20-degree angle at 60 feet away would result in an accuracy of +/-3 mph.
From how far away can the speed of a baseball, softball, or tennis ball can be determined?
0 to 75 feet.
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