Operation Manual

UK • 17
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The advantage of a laser speed gun is that the size of the “cone” of light that the gun emits is very small, even at a range like 1,000 feet
(300 meters). The cone at this distance might be 3 feet (1 meter) in diameter. This allows the gun to target a specific vehicle. A laser
speed gun is also very accurate. The officer has to aim the laser speed gun at a specific target therefore the officer will only target
your vehicle if the officer deems that you are speeding.
How Does Police Laser (LIDAR) Work?
LIDAR is an acronym for Light Distance And Ranging. A LIDAR gun emits a highly focused beam of invisible light, in the near
infrared region of light that is centered at 904nm of wavelength and is only about 22 inches (56cm) in diameter at 1000 feet (300m).
Unlike RADAR which directly determines a vehicle’s speed by measuring its Doppler shift, LIDAR calculates speed by observing the
changing amount of time is takes to “see” reflected pulses of light over a discreet amount of time.
Radar Alerts
The 3ZERO has been designed to detect a number of different radar bands including K, Ka, Ku and X band. When the unit detects one
of these three frequencies the display will show the radar band type plus display the signal strength. As you drive closer to the signal
the unit will beep faster and the display will indicate that you are getting closer by displaying a series of signal strength blocks.
Switching the radar bands on and off.
The 3Zero comes with only the K band radar frequency switched on as standard. To switch other frequencies on or off, enter the
Menu by pressing the MUTE/MENU button and then scroll through the menu using the UP/DOWN button. Press the SELECT button
when you see the radar frequency you want to change. Using the UP/DOWN button you can switch the radar band on or off. Press
the SELECT button to confirm your selection.
8. Saving New Coordinates
If in the unlikely event that you pass the location of a fixed speed safety camera and your 3Zero does not provide you with an alert,
you have the opportunity to store the coordinates of the location manually. Simply park safely as close as possible to the site and
press and hold the ‘New Location’ button for approximately two seconds. If the voice setting on your unit is switched on the unit will
confirm ‘User data stored’ and the screen will display ‘M’ and the number of that location in your unit’s memory.
You may also wish to use this feature to store your own ‘high risk zones’ or ‘accident black spots’.
When you next pass that location again your 3Zero will now alert you to that location. As the unit does not know what type of system
you are passing the unit will display ‘User Pnt’ and give either a voice alert stating the location as a ‘Risk zone’ or your chosen audible
alert. Your unit can hold up to a maximum of 99 coordinates in its memory
Troubleshooting – Saving New Coordinates
When you attempt to save a new coordinate but the display reads ‘Weak Sig’ it means that your 3Zero is not receiving sufficient signal
strength to plot the position. Please ensure that the 3Zero built-in GPS antenna has a clear view of the sky, the unit is displaying the
standby screen and try again.
When you attempt to save the new coordinate and the display reads ‘Mem Full’ it means that the memory in your 3Zero is completely
full. If you want to store any different coordinates you will have to either delete some or all of the existing coordinates stored in the
unit’s memory.