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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
Li
ght
D
istance
A
nd
R
anging. 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.
8. Saving New Coordinates
If in the unlikely event that you pass the location of a fixed speed safety
camera and your Snooper Evolution 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 Snooper Evolution 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 Snooper Evolution is not receiving sufficient signal strength
to plot the position. Please ensure that the Snooper Evolution 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 Snooper Evolution is completely full. If
Operating Instructions
Operating Instructions
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