Pocket Radar Logo .
Store locator
.
Order NowShopping CartMy Account
Tons of Uses How it Works Partner Programs Blog/News
Spec Sheet FAQs
  POCKET RADAR™ FAQs
General Questions:
What is a Pocket Radar™?
What is the difference between the Classic and the Ball Coach™ radar?
Why would I want one?
What would I use it for?
Is the Pocket Radar™ a radar detector?
How much does it cost?
Is it safe?
Does it need batteries?
How long do the batteries last?
How accurate is the Pocket Radar™?
What warranty do you provide?
Will it measure distance?
Will it measure in kilometers per hour (KPH), instead of miles per hour (MPH)?
How do I change the units to KPH, MPS or FPS?
What is the range of the Pocket Radar™?
How far away can it measure the speed of a car?
Is the Pocket Radar™ certified for use by the police?
How does it compare to the other larger radar guns?

Using the Pocket Radar™:
How do I take a measurement?
What happens if I hold the red button down?
How do I calibrate it?
Can I use it when I am moving? Can I read the speed of another car when I am moving in my car?
How do I hold the radar to make a measurement?
How do I point the radar?
What is the black RECALL button for?
Can I be moving when I use it?
Will it work through other objects?
Where is the On/Off switch?

Application Questions:
Can I use it for baseball?
Can I measure the speed of the baseball off the bat?
How can I use it for training my baseball team?
How can I use it for dog training?
Can I use it for horse training?
Can I use it for golf?
Can I use it to measure paintball gun velocity?
Can I use it to measure muzzle velocity?
How can I use it for auto or motorcycle racing?
Can I use it when I am skiing?
How accurate is it measuring a baseball?
Does it work through a baseball backstop?

Advanced Questions:
Over what temperature range can I use the Pocket Radar™?
Does the Pocket Radar™ work at night?
Does it work underwater, in the rain, is it waterproof?
Does it measure the wind speed?
Does it come with a tuning fork?
Will it measure multiple objects at different speeds?
Why do I sometimes see readings that I can't explain?
Does it have an automatic trigger mode?
Will it work with an electronic scoreboard, phone, computer, etc?
Can I export the recorded data?
What is Cosine Error?
What is the beam width of the radar?
Why can’t it measure at an angle?
Does it measure the biggest object or the fastest object?
Will it measure relative speed?
What happens when there are multiple cars in the beam?


General Questions:

What is a Pocket Radar™?
Pocket Radar™ is the brand name for the world's most advanced hand-held speed measurement technology. There are several different models of Pocket Radar™ products available that are each designed for different measurement needs. There are models available can measure the speed of moving objects ranging from 7 miles per hour (MPH) to 375 MPH, 11 kilometers per hour (KPH) to 600 KPH, 10 feet per second (FPS) to 550 FPS, or 3 meters per second (MPS) to 168 MPS. Pocket Radar™ products use the same Doppler speed radar techniques as the large police radar guns but use much more advanced technology to allow them to fit in much smaller and more portable packages, and use a lot less power. The Pocket Radar™ technology has been independently tested and certified to be accurate to +/- 1 MPH by the test lab sanctioned by the International Association of Chiefs of Police to certify all of the radar guns used by the Police in the US and Canada. From everyday consumers to traffic safety professionals, Pocket Radar™ provides the most portable and convenient solution to your speed measurement needs.
back to top

What is the difference between the Classic and the Ball Coach™ radar?
Put simply, the Ball Coach radar is the best choice for measuring ball speeds like baseball or softball pitches, tennis serves and cricket bowls. The Classic model is the best choice for measuring objects that are in continuous motion for several seconds or longer like vehicles, runners and R/C planes.

Measuring the speed of a ball in flight is a unique challenge because it will slow down significantly due to air resistance. For Instance an 80 MPH baseball pitch is 80 MPH at the release from the pitcher’s hand but it will only be about 72 MPH when it crosses the plate. A tennis ball can slow down by over 20 MPH from the strike of the racket to the bounce. To get the fastest speed of the ball right at the start of the flight you need to make sure the measurement happens at the right time.

The Ball Coach™ radar adds a lot of new technology that is specifically designed to track a ball over the entire flight and automatically find the fastest speed for you. This can be done by simply holding the button down through the entire flight of the ball, or by putting it into the Constant-on / Auto -trigger mode. It also adds a lot of extra technology to find a ball in the presence of other objects like a swinging bat or racket. This feature allows you to use the Ball Coach radar to measure the Ball Exit Speed as it leaves the bat, which is to only direct measure of the power of a hit. The Ball Coach radar is specifically designed to be a great training and coaching tool for all types of ball sports. It has up to 120 feet of range on a baseball. This is plenty of range for use right behind the backstop on most high school fields, but it is not intended for use as a scouting radar gun for sitting back in the stands.

The Classic model of Pocket Radar™ can only be triggered manually. So you need to time the trigger for when you want to make the measurement. There are 2 trigger modes in the Classic model, Snapshot and Repeating. If you hold the button down you are in the Repeating mode and the radar will make a new measurement every 3/4 of a second. This is great for measuring things that are in motion for several seconds or longer like vehicles and runners. Repeating mode does not work for a pitch because any baseball pitch over 60 MPH will only be in the air for less than 3/4 of a second. To use the Classic in the Snapshot mode you need to just TAP the button like the spacebar on a computer within 0.4 seconds of the point where you want to make the measurement. If the object is slowing down rapidly like a ball in flight, it can sometimes be a challenge to get the right trigger timing to always capture the fastest speed of a ball. For a baseball or softball pitch the best timing is to TAP the button as the pitcher is planting their front foot to get the fastest speed of the ball right out of the hand.
back to top

Why would I want one?
Mankind has always been fascinated by speed. Having a precision instrument that is easy to use and convenient to take with you can be a lot of fun in many different situations.

If you don’t need one to do your job, why would you want a Pocket Radar™? Pocket Radar™ enables you to measure your son or daughter’s soccer kick speed or baseball pitch speed. Pocket Radar™ lets you see how fast your favorite driver runs at the races. Pocket Radar™ lets you brag about how fast your radio control boat can go. Pocket Radar™ even allows you to measure the speed of your dog when training to retrieve.

You probably have a tape measure in the back of your junk drawer (or maybe your tool box if you are organized) just in case you need to measure distance. With a Pocket Radar™ you can measure speed from 7 mph to 375 mph. Just like you don’t know what distance you will need to measure next, you don’t know what speed you will need to measure next.

You may want to have a Pocket Radar™ just because it is a great tool, or because you want to be the first to have a fascinating piece of technology.

back to top

What would I use it for?
There are many uses for speed radar. Currently we are seeing athletes, coaches, trainers, hobbyists, sports fans, people concerned with neighborhood safety and people just having fun knowing how fast things are going, using the Pocket Radar™. Every day we hear about a new application for Pocket Radar™.

We have tested the Pocket Radar™ to work with baseball, softball, tennis, lacrosse, golf, track and field, soccer, football, downhill skiing (both measuring other’s and your own speed), racquetball, paintball, archery, disk golf, auto racing, neighborhood traffic speed monitoring, motorcycles, bicycles, skateboards, trapshooting targets and just about anything that moves. Maybe you need to measure the speed of your Frisbee throw or verify the speed of your friend on his unicycle or a Pinewood Derby racer. Pocket Radar™ can measure almost anything that moves from 7 to 375 MPH.

back to top

Is the Pocket Radar™ a radar detector?
Pocket Radar™ is not a radar detector. It will not tell you if the police are trying to measure the speed of your automobile. Pocket Radar™ is more like the radar that the officer uses to measure your speed. It will actually set off a K-band radar detector.
back to top

How much does it cost?
Pocket Radar™ has a list price of $249. It is currently being offered for an introductory price of $199.99 at our web site store: http://Store.PocketRadar.com
back to top

Is it safe?
Yes, the Pocket Radar™ is specifically designed to be very safe to use and to store in your pocket. The patented new sensor technology is designed to work with a very low power output. The output power is much less than almost all commonly used wireless devices. Also, unlike these other devices that stay on all the time, the Pocket Radar™ only generates an output for a small fraction of a second when the red button is pushed. It does not stay on continuously. The maximum exposure possible is hundreds of times less than the accepted standard for maximum continuous exposure to radiated emissions. The energy exposure from a Pocket Radar™ is many, many times lower than a person gets from using a cordless telephone or a cell phone. It is also less exposure than you can get from wearing a Bluetooth headset, or standing beside an operating microwave oven.
back to top

Does it need batteries?
Yes. The Pocket Radar™ uses 2 standard AAA type batteries. It comes with Alkaline batteries included. You can get over 10,000 speed readings from a single set of alkaline batteries. You can also use Lithium, or Rechargeable Nickel Metal Hydride type batteries.
back to top

How long do the batteries last?
Under normal operating conditions you can make over 10,000 speed measurements on one set of 2 Alkaline AAA batteries. The battery indicator on the LCD display will help you determine when to replace the batteries. The Battery indicator is calibrated for Alkaline batteries. If you choose to use Nickel Metal Hydride type rechargeable batteries the battery indicator may read slightly lower.
back to top

How accurate is the Pocket Radar™?
Pocket Radar™ can measure speed in four different units, miles per hour (MPH), kilometers per hour (KPH), meters per second (MPS), or feet per second (FPS).
The accuracy is +/- 1 MPH, +/- 2 KPH, +/-1 MPS or +/- 2 FPS.

Pocket Radar™ will only measure the relative speed of an object in the direction directly towards or away from the radar antenna. If you point the Pocket Radar™ (or any radar unit) at an object moving sideways instead of directly towards you or away from you, it will correctly read a very slow speed. This is because an object moving nearly at right angles to any radar only moves at a very slow relative speed towards or away from that radar.

In order to make the most accurate speed measurement, you need to point the Pocket Radar™ antenna at a moving object and be as close to in line with the direction of motion of that object. Obviously, you need to stay safe when you use the Pocket Radar™. Never put yourself or anyone else in a position to possibly be hit by a moving object. Don’t play in traffic.

back to top

What warranty do you provide?
The Pocket Radar™ comes with a one year warranty. It is built to be very tough. With proper care it will last a very long time. If it doesn’t display anything, first check the batteries. If you are having trouble getting speed readings, please refer to the “Quick Start Guide” that came with your unit, or refer to the on-line Manual or “Frequently asked Questions”, (FAQs) on the PocketRadar.com web-site. If there is a problem with your Pocket Radar™, please contact us at Support@PocketRadar.com or telephone us at 1-888-381-2672 for help or instructions on how to return the radar for repair or replacement.
back to top

Will it measure distance?
No, the Pocket Radar™ only measures the speed of a moving object. It does not measure the distance to that object.
back to top

Will it measure in kilometers per hour (KPH), instead of miles per hour (MPH)?
Yes, you can switch the Pocket Radar™ into KPH mode to display kilometers per hour instead of miles per hour. It can also measure in feet per second (FPS), and meters per second (MPS).
back to top

How do I change the display to show different units such as KPH, MPS or FPS?
If you want to change the units displayed on the screen, just press and hold the black RECALL button. While holding the RECALL button down, press and release the big red button. Now release the RECALL button. The current selected units should blink (at the bottom of the display). Then each time you press and release the big red button, the units will advance to the next possible state (miles per hour, kilometers per hour, feet per second, meters per second). Note: The display units are abbreviated as MPH, KPH, FPS and MPS on the display.

Press and release the big red button until you see the units that you want to use blinking on the display. They will continue to cycle through each time you press the big red button. Finally, press and release the RECALL button and you will lock in the units displayed on the screen. You should see the current measurement display change in value to match the speed in the different units as you change the display units. All of the speeds stored in the RECALL memory will also be converted to the new units. The Pocket Radar™ will remain in the new units mode until changed again using this same procedure.

back to top

What is the range of the Pocket Radar™?
Pocket Radar™ can spot the speed of a car with a good radar return from about a half a mile away. Pocket Radar™ can report on the speed of a baseball with a good radar reflection from up to 120 feet away. Not all baseballs are made the same. Some have a better radar return than others.

Depending upon the size of the moving object, Pocket Radar™ will have a range similar to these numbers for objects similar in size. We have seen even longer range for a very large object with an excellent radar reflection such as a large truck with a large flat metal front. You may not get a reading if you are too close to a very large moving object. The Pocket Radar™ has plenty of range to find interesting uses in almost every sport and interest.

back to top

How far away can it measure the speed of a car?
Pocket Radar™ can measure a car with a good radar return from about a half a mile away. Some larger cars have more flat surfaces and will remain visible to the Pocket Radar™ even further away. Some cars have a smaller profile and will have less range. A large truck with a flat metal front will reflect a strong signal and remain visible even more than half a mile away. You may not get a reading if you are too close to a very large moving object.
back to top

Is the Pocket Radar™ certified for use by the police?
The National Highway Traffic Safety Administration (NHTSA), along with the International Association of Chiefs of Police (IACP) and the Law Enforcement Standards Laboratory of the National Institute of Standards and Technology (NIST), have developed specific testing protocols and performance standards for speed measuring devices. Police Radar units that have been tested and meet certain standards are included in the NHTSA / IACP Consumer Product List (CPL) of approved speed measuring devices. CPL approval insures that a traffic radar model meets basic minimum standards set by the NHTSA, IACP, and NIST. Some, not all, states and/or agencies require speed measuring devices (under the state or agency jurisdiction) be CPL approved for use by law enforcement agencies.

At this point in time the Pocket Radar™ has not been tested by these agencies for possible inclusion on the CPL. If you have a law enforcement application for Pocket Radar™, please let us know and we can look into how to help solve your need.

back to top

How does it compare to the other larger radar guns?
Most hand held radar units are called radar guns because they are held like a gun. They contain a radar transmitter that uses a long antenna called a horn, and it actually looks like a horn. It is long and the radar unit or gun has to be big to fit the horn inside.

Pocket Radar™ uses a much smaller, flat antenna to create the same type of signal that the horn creates. Because of this, and many other proprietary inventions, Pocket Radar™ provides the key advantage of small size.

Pocket Radar™ uses less power than some of the larger radar guns. Pocket Radar™ was designed to give you a very useful range for an affordable price in a very small size. It has shorter range than the most expensive guns, and longer range than the less expensive larger guns. Pocket Radar™ can read a pitch speed from behind the backstop, but you may not be able to capture the speed of a baseball from out in the outfield.

Used properly, Pocket Radar™ will give you the same accurate measurements as the larger more expensive radar guns. However, it does not have quite as much range as the most expensive radar guns. if you absolutely need to capture the speed of a baseball right off the pitcher's hand from a very long distance away or if you need to measure speed with resolution of 0.1 mile/hour, or to have more complicated measurement modes, then maybe you need a much more expensive radar gun. For the vast majority of applications, the Pocket Radar™ offers a very portable and economical solution that is much more convenient and very easy to use.

back to top

Using the Pocket Radar™:

How do I take a measurement?
To measure the speed of a moving object, simply “press and release” the big red button on the Pocket Radar™ while pointing the radar beam from the back of the unit directly at the moving object. To make the most accurate measurement you need to be directly in line with motion of the object. It can be moving towards or away from you. For objects that are only in motion for a short period of time, like a baseball pitch or tennis serve, “press and release” the big red button right before the object starts to move. The intelligent target acquisition algorithms in the Pocket Radar™ processors will find and display the fastest object.
back to top

What happens if I hold the red button down?
If you do not release the big red button, the Pocket Radar™ will continue to send out repeating small pulses and displaying a new speed measurement approximately every ¾ of a second. This mode works well for slower objects like people running, or objects that are continually moving like a car from a long distance away. However this mode will not be a good way to catch an object that is only in motion for a short period of time like a baseball or tennis serve.
back to top

How do I calibrate it?
The Pocket Radar™ is factory calibrated and does not need any further calibration.
back to top

Can I use it when I am moving? Can I read the speed of another car when I am moving in my car?
Yes, the Pocket Radar™ measures the relative speed of the object that reflects the most radar signal. If you are moving in your car, any fixed objects that are capable of reflecting the radar signal back to your Pocket Radar™ will allow you to measure your speed relative to those fixed objects.

If you are close to a car or truck that reflects more signal than all of the rest of the environment, you will be able to measure the speed that you are traveling relative to that vehicle. If you were both traveling 45 miles per hour in different directions, you would measure the 90 miles per hour relative speed with the Pocket Radar™, but only as you approach the other vehicle as it moves towards you. When you are moving, you may not see a big enough return from another vehicle to overpower the returning radar signal from the rest of the stationary objects around you, and then you would measure your own speed.

When you measure the speed of a moving car from inside that car, you may see a stronger signal from interference inside your own car. Many cars have fans hiding behind plastic surfaces. If these show a stronger signal than the rest of the environment, you may not be able to measure anything besides that moving object (the air conditioning fan, for example) inside your car. For better results hold the unit up higher in the windshield away and turn off all of the heaters and fans.

You may want to use the Pocket Radar™ as a speedometer for your bicycle. You can certainly use it to check your own speed on a bicycle or a skateboard. We don’t recommend that you take your hands off the handlebars. Always make sure that you are being safe when using your Pocket Radar™.

back to top

How do I hold the radar to make a measurement?
Point the back of the Pocket Radar™ just like a cell phone camera. Think of the raised rectangular area on the back as if it were a lens for a camera. Hold the unit up vertically and point that lens right at the moving object.

When you see a moving object, “push and release” the big red button to take a snapshot of the speed of that object. It is just that easy. You don’t need to turn anything on or calibrate the Pocket Radar™ before you take a measurement. Just point it and shoot. Pocket Radar™ starts working instantly, as soon as you press the big red button.

If you want to measure an object continuously, such as the speed of a drag racer or a track and field runner, just push and hold the big red button down. About once every ¾ of a second, the Pocket Radar™ will take another measurement and display it on the screen. Let go of the button when you finish taking speeds. Press the RECALL button and you can bring back the last ten measurements that the Pocket Radar™ took. This lets you see the acceleration of the dragster or the runner as it changes over time.

back to top

How do I point the radar?
Point the radar just like you would point a cell phone camera. Imagine that the raised surface at the top of the back of the radar is the camera lens. Hold the Pocket Radar™ up vertically and point that radar “lens” right at the moving object. Then press and release the big red button to take a snapshot of the speed.

Imagine that the radar beam is shaped like a flashlight beam. If you point that beam at the moving object’s path, you will be more successful at measuring the speed. Move to a position where you can shine that radar beam along the path and you will also have a more accurate measurement of the object’s speed.

back to top

What is the black RECALL button for?
Pressing the RECALL button once will display the last speed measured. If you press it again it will show the previous reading before that. You can continue this process to see the previous ten speeds.

You can also use the RECALL button to change speed measurement units on the Pocket Radar™. You can measure in MPH (Miles per Hour), KPH (Kilometers per Hour), FPS (Feet per Second), and MPS (Meters per Second). To change which units you are showing, Push and Hold the black RECALL button. While holding the RECALL button down, Push and Release the red button. Then release the black RECALL button. Then the units used to display the speed will flash. To choose the units you want, push and release the red button to cycle through the choices of units. When you have selected the units you would like to see, press and release the black RECALL button and the Pocket Radar™ will read the speed in the units you chose. It will remain in this mode until this same sequence is used to change them again. All of your previous speed measurements in the RECALL memory will also be converted over to the new units.

back to top

Can I be moving when I use it?
Yes, the Pocket Radar™ measures the relative speed of the object that reflects the most radar signal. If you are moving, any fixed objects that are capable of reflecting the radar signal back to your Pocket Radar™ will allow you to measure your speed relative to those fixed objects.
back to top

Will it work through other objects?
The Pocket Radar™ operates on reflected radio waves. The beam will travel through objects that will allow these radio waves to pass through but the range will go down as the signal is weakened as it passes through different objects. The radio waves from the Pocket Radar™ will not pass through solid metal objects or conductive walls. It will pass through a chain link fence that has openings in the mesh that are similar in size or larger than the radar lens on the back of the Pocket Radar™.
back to top

Where is the On/Off switch?
The Pocket Radar™ is designed to be very easy to use. When you hit the big red button, it turns on the unit and quickly makes a measurement. Then it will leave the measured speed on the display for approximately 30 seconds before turning itself completely off. There is no need for an on switch or an off switch.
back to top

Application Questions:

Can I use it for baseball?
Yes, the Pocket Radar™ is designed to be able to measure a baseball with a good radar reflection from up to 120 feet away. Not all baseballs are made the same. Some have a better radar return than others. To capture an accurate speed reading on a baseball, it is important to know how to trigger the Pocket Radar™. Unlike other radar guns, do not hold the button down. instead you need to quickly “press and release” the red button half way through the wind-up, before the ball is released. This will give you an accurate reading of the speed of the ball out of the pitchers hand.
back to top

Can I measure the speed of the baseball off the bat?
The Pocket Radar™ can measure the speed of the ball as it leaves the bat. Just point the Pocket Radar™ along the outgoing path of the baseball and press the big red button just as you hear the bat hit the ball. The timing of when you press the button is important. If you hit the button too soon you could get the incoming pitch and not the outgoing hit ball. If you know that the speed off the bat is faster than the incoming pitch speed, then you should hit the button an instant before it hits the bat. Simply adjust the timing of when you hit the button to get the speed of the ball off the bat.
back to top

How can I use it for training my baseball team?
Besides the obvious use of the Pocket Radar™ to measure pitching speed, there are many other uses for the baseball coach. The Pocket Radar™ can measure the speed of the ball as it leaves the bat. Just point the Pocket Radar™ along the outgoing path of the baseball and press the big red button just as you hear the bat hit the ball. The timing of when you press the button is important. If you hit the button too soon you may get the incoming pitch and not the outgoing hit ball. If you know that the speed off the bat is faster than the incoming pitch speed, then you should hit the button an instant before it hits the bat. Simply adjust the timing of when you hit the button to get the speed of the ball off the bat.

You can measure the speed of a runner by holding the big red button down as the runner moves “out of the hole” from home plate to first. The Pocket Radar™ will display a new measurement about every ¾ of a second. Hold the Pocket Radar™ in front of you so that you can see the runner and the speed display of the radar at the same time.

You should see the speed steadily increase as the runner approaches first base. If they slow down before they reach first base, remember where their speed started to drop. You could even mark the location where they slowed down, and remind them to keep trying to maintain or increase their speed all of the way through first base. You can use the RECALL function to go back through the last 10 speed readings.

It’s not just about maximizing your pitcher’s speed. You will be able to help the pitcher gain control of the ball and adjust their speed for various types of pitches. It is all about control of location and speed, and the Pocket Radar™ offers the opportunity to accurately measure, not just estimate the speed of the pitch.

Pocket Radar™ offers a great opportunity to improve the arms of the rest of the team, not just the pitcher. Stand in line with the coach’s box near first base, and you can clock the speed of a shortstop’s throw to first. Try them out with a few grounders and ask them to throw out a runner at first. You will soon see who really has the throwing speed as opposed to who just appears to have that speed. Alternatively, Pocket Radar™ can check the fielder’s throwing speed from center back to second in drills. Pocket Radar™ will help all the players to know their performance, and with practice, improve and win more.


back to top

How can I use it for dog training?
The Pocket Radar™ has been tested on many different types of moving objects including dogs. You can measure a running dog as long as it travels faster than 7 miles per hour and stays within range. We have had a surprising amount of interest in retriever training for dogs.

However, we wouldn’t bet on using it with a cat. Usually, the cat is not the one who moves. We don’t know of anyone who is good at herding cats, much less improving their speed.

back to top

Can I use it for horse training?
Pocket Radar™ can measure the speed of a horse even easier than the speed of a runner. Realize that it may be difficult to measure a group of horses unless they are all running at the same speed. Training with one horse and rider should leave little confusion about the speed that they can achieve. You need to be in a position directly in line with the direction the horse is running.
back to top

Can I use it for golf?
Yes. Pocket Radar™ can easily measure the speed of a golf ball. To capture the golf ball speed, stand about 10 feet back behind the tee, make sure you are safely away from the swinging club. It is best to kneel down and aim the Pocket Radar™ in line with the trajectory of the ball and press and release the red button as the club is on the downswing just before it comes in contact with the ball.

Pocket Radar™ is not designed to measure club head speed since the instantaneous speed is changing continuously during the swing. If you want to measure club head speed, let us know and we can look at a future product to make this easy for you to do.

back to top

Can I use it to measure paintball gun velocity?
Yes. Pocket Radar™ can measure the speed of a paintball. There is a FPS, (feet per second) mode if you need it. In our testing we saw that the Pocket Radar™ can have a range of 30 to 40 feet on a paintball. However, we do not recommend using the current Pocket Radar™ to compare to a chronometer since the paintball can slow down significantly from the time it leaves the muzzle of the gun to the end of the Pocket Radar™’s range. This means that depending on your timing, you may not be capturing the speed of the ball immediately out of the barrel of the gun like the chronometer will always do. In practice if you press and release the red button just before you pull the trigger on the paintball gun you can easily measure the paintball speed. If you do this 10 times in a row and use the RECALL function to find the maximum reading of all of these shots it should match closely with the chronometer reading. If you need to measure paintball speed right out of the muzzle, let us know and we can look at a future product version to make this easy for you to do.
back to top

Can I use it to measure muzzle velocity?
The current version of Pocket Radar™ is not designed to measure muzzle velocity. Even if the muzzle speed was below the maximum measurement speed of 375 MPH, it is very hard to time the trigger to guarantee that you get the speed right at the muzzle. If you want to measure muzzle velocity, let us know and we can look at a future product to make this easy for you to do.
back to top

How can I use it for auto or motorcycle racing?
Point the Pocket Radar™ down the straightaway and measure your favorite driver’s vehicle as they reach their fastest speeds. If the cars are all in a group, you will get the speed of that group of cars, or else the one with the largest returning radar signal. If you only have one car in view, you know for sure that the speed corresponds to that car. Pocket Radar™ can spot motorcycles as well as cars, with some reduction in the range due to a smaller reflection of the radar signal from the smaller sized motorcycle.

You can certainly use the Pocket Radar™ to settle those track disputes about whose favorite driver can take the turns at the fastest speed. Position your Pocket Radar™ straight on to the point in the curve where you want to measure speed. Push that big red button when you want to take a measurement and the Pocket Radar™ will quickly tell you who is the fastest.

As a driver, you may have fully instrumented your own car to record your speed at all points along the track. That helps you to understand your own performance, but you don’t have access to your competitor’s data. One driver we know wants to place his crew at critical turns to compare the leader’s speeds with what he can do. That way he knows what they do on the course and what he has to do in order to win.

back to top

Can I use it when I am skiing?
Yes. The Pocket Radar™ will work well as long as the unit does not get too cold. Keep the unit in an inner pocket while it is not in use and then it will still be relatively warm when you pull it out to use it. Even if it is very cold outside, it will take a while for the unit to cool down completely. As the unit starts to get too cold you will notice that the LCD display will start to react sluggishly but the radar will measure just fine. We have conducted usage tests with the Pocket Radar™ itself at 10 degrees Fahrenheit and everything worked fine.
back to top

How accurate is it measuring a baseball?
The Pocket Radar™ is accurate to +/- 1 mile per hour when it makes a measurement. The Pocket Radar™ will accurately measure the speed of the ball when you trigger the radar measurement by pressing the big red button. But you need to remember that a baseball will slow down over the distance from the pitcher to the catcher. A fastball may slow down by as much as 4 MPH from the pitcher to the catcher, where a change-up pitch may slow down more than 10 MPH. To catch the maximum speed of the pitch, make sure you are as close as you can be to the pitcher, and trigger the measurement just an instant before they release the ball. If you hit the button later, the ball may have slowed down somewhat from the speed right out of the hand. After a few tries it is very easy to find the correct timing.
back to top

Does it work through a baseball backstop?
Yes. The Pocket Radar™ has had extensive testing to make sure it will be useable through a metal chain-link baseball backstop. The range may be slightly less than without a metal backstop in the way.
back to top

Advanced Questions:

Over what temperature range can I use the Pocket Radar™?
The Pocket Radar™ has been tested to work over the extremes of temperature likely to be encountered by any hand held device. It is specified to operate at temperatures from 20 degrees F to 140 degrees F, and withstand storage temperatures from -40 degrees F to 185 degrees F. We have conducted usage tests with the Pocket Radar™ itself at 10 degrees Fahrenheit and everything worked fine.

If you accidentally leave it on the dashboard of your car in the summer heat, or in the trunk of your car in the dead of winter, it will still work. For best performance during extreme temperature conditions, keep it in your pocket. You are always ready to check a speed with Pocket Radar™’s instant-on performance. Just point it and press the big red button and you can take a speed measurement, just like pointing a cell phone camera.

back to top

Does the Pocket Radar™ work at night?
The Pocket Radar™ will take a radar measurement of speed at any time you press the big red button, day or night. However, you may have a hard time reading the speed display unless there is enough light to see it. The Pocket Radar™ doesn’t have a backlight for the LCD display. This was to assure there would be plenty battery life rather than spend the battery power on a backlight.

If you didn’t see the speed because it was too dark, bring the Pocket Radar™ up to a light bright enough to read the display and push the RECALL button. The black RECALL button will bring up the last ten speeds that the Pocket Radar™ measured, one at a time, every time you press the RECALL button again.

back to top

Does it work underwater, in the rain, is it waterproof?
The Pocket Radar™ is not waterproof. It should be able to tolerate a small amount of rain on the outside of the plastic if you do not let the water get inside the unit. Make sure you keep it dry. If you want a simple way to protect your Pocket Radar™ from the rain, simply put it inside a small snack size zip-lock type plastic bag. It will not affect the operation of the unit and you will still be able to see the display and press the buttons.
back to top

Does it measure the wind speed?
Pocket Radar™ will not measure wind speed. Pocket Radar™ will only measure the speed of solid objects. The radar waves will bounce off any solid surface. The wind doesn’t have a solid surface for the radar waves to bounce off.
back to top

Does it come with a tuning fork?
It does not come with a tuning fork because you won’t need one. The Pocket Radar™ has been designed to remain accurate without needing calibration. The Pocket Radar™ stabilizes it's transmit frequency with a dielectric resonator, which acts like the crystal in your watch to deliver precise and accurate operation. This means that there is no need to adjust or calibrate the Pocket Radar™ in order to maintain accurate performance.

Some older technology radar guns used by the police required adjustment to deliver accurate readings. Officers are still trained to verify the accuracy of their radar by pointing it at a calibrated tuning fork. A vibrating tuning fork creates a reflected signal that looks just like a moving object to the radar. If the radar reads the correct speed looking at the tuning fork, then the officer can trust the accuracy of the reading on the radar.

Pocket Radar™ doesn’t need calibration adjustments, but you could verify that it reads the correct speed using a calibrated tuning fork made for K band radar. (i.e., one calibrated to work with a 24.125 GHz radar transmission; the frequency of the Pocket Radar™ transmitter).

back to top

Will it measure multiple objects at different speeds?
Pocket Radar™ measures the largest object in a group of moving objects, or rather the object that creates the largest returning radar signal. Pocket Radar™ sees all of the returning signals from each of multiple objects. On each measurement it will record the speed of the object with the largest signal. With each press of the red button Pocket Radar™ will very quickly take several measurements in a fraction of a second and then display the fastest speed of the largest object in its view.

Don’t be fooled when measuring a distant object if you happen to have a larger, slowly moving object in the field of view of the Pocket Radar™. This is one of the reasons we chose to limit the lower speed to 7 miles per hour. Otherwise you could see too many slowly moving objects that would dominate the radar reflections and hide the one you care about.

back to top

Does it have an automatic trigger mode?
No, Pocket Radar™ only works in manual trigger mode by pressing the big red button.
back to top

Why do I sometimes see readings that I can’t explain?
All speed radar guns are susceptible to picking up interference that can sometimes cause unexplained or random readings that are often referred to as “ghost” readings. There are two main sources of these ghost readings, electrical interference and objects in motion. There are many sources of electrical interference including things like cell phones, computer monitors, fluorescent lights, neon signs, radios, etc. Any objects that vibrate, move or spin can also create a ghost reading. Things like motors, fans, propellers can often be unseen behind covers or other objects but still be picked up by your radar. If you are experiencing these types of random readings change your position to try and aim the radar unit away from the source of interference.
back to top

Will it work with an electronic scoreboard, phone, computer, etc?
The Pocket Radar™ is intended to be a very easy to use “Point and Shoot” speed measurement device that will fit easily in your pocket be convenient to take anywhere. It does not talk to any other electronic devices. It only starts a measurement when you push the big red button. If you have a need for speed radar that can interface with other devices please let us know and we can work on a future version that might meet your needs.
back to top

Can I export the recorded data?
No, the Pocket Radar™ does not store more than the previous ten measurements. To view the previous measurements scroll through them by pressing the black “RECALL“ button. The current version of pocket radar does not have an output to connect to any other devices. If you are interested in extracting data from the Pocket Radar™, please contact us to talk more about your application so we can consider it for future versions.
back to top

What is Cosine Error?
The accuracy of all Doppler speed radars depends on the angle between the radar beam and the moving object. This is based on the physics of how Doppler radar works. The accuracy can be calculated based on the Cosine formula. For instance, if you are within 8 degrees of angle from the line of travel of the object, you will be within 1% accuracy. If you are within 18 degrees you will be within 5% error and if you are within approximately 25 degrees you will be within 10% error. If you are at 45 degrees of angle, the error gets up to 30%. The speed will always read lower than the actual speed for angles off the direct line of travel. If you are exactly perpendicular (90 degrees), to the line of travel, the radar will not be able to make a speed reading. This is why the police cannot sit down a side street and catch you on radar as you go across in front of them. They need to be in line with your car. On the other hand, they don’t have to worry if they are off angle by a few degrees. Because they know if their radar reads above the speed limit you were actually going even faster than it shows!

What does this mean for you when you use the Pocket Radar™? You should always try to position the beam of the Pocket Radar™ as close as possible to the line of travel of the moving object. For instance, stand as close as possible to in line with pitcher and catcher, but keep in mind that you still have to be able to see the ball…. Don’t put yourself in a position where you could get hurt. Just remember what your Mom said, “Don’t play in traffic”.

back to top

What is the beam width of the radar?
The Pocket Radar™ has a beam width of about 20 degrees. This means that it is shaped a lot like the beam of a flashlight. The beam spreads out a bit and lets you see things best in the center of where you point the radar lens (the raised plastic square on the back of the Pocket Radar™). However, you don’t have to aim it like you would a laser beam that only illuminates a very small spot.
back to top

Why can’t it measure at an angle?
Any Doppler radar can only measure the relative speed between the radar and a moving object. If the radar is standing still and the object is moving towards or away from the radar the relative speed will be at the maximum possible. If an object is moving across sideways in front of the radar, at the point where it is directly perpendicular with the radar beam, the speed of the object relative to the radar is actually zero. For more details refer to the question about Cosine error.
back to top

Does it measure the biggest object or the fastest object?
Each time you press the big red button the Pocket Radar™ will very quickly take several measurements and look for the largest object each time. Then it will display the fastest speed measured over the series of measurements.
back to top

Will it measure relative speed?
Yes. The Pocket Radar™ will always measure the relative speed between the radar and the target moving object. If the radar is used while you are moving, it will measure the relative speed between your speed and the moving target.
back to top

What happens when there are multiple cars in the beam?
Each time you press the big red button the Pocket Radar™ will very quickly take several measurements and look for the largest object each time. Then it will display the fastest speed measured over the series of measurements.
back to top







 
  Pocket Radar™ On Sale
                        Now   Visit Us at CES 2010
                        Booth #13148   Sign Up to receive
                        all the latest Pocket Radar™ News  
 
Home About Us Contact Us Where to Buy FAQs Press Privacy
                        Policy
User Manual Partner
                        Programs Blog/News        
Invention
                        Planet
30-Day
                      Money Back Guarantee The Pocket Radar™ Commitment
The Pocket Radar™ team is committed to making sure every Pocket Radar™ is delivered in perfect working order, and every customer is 100% satisfied with their purchase. If you are unhappy for any reason with your Pocket Radar™ purchase within the first 30 days, we will refund your money, no strings attached. If for some reason your Pocket Radar™ malfunctions in any way during the first year, we will replace it at no cost. Click to find out more about 30 Day Money Back Guarantee and our 1 Year Warranty.