User Manual

16
The first thing you will need to do is to locate an area over which you wish to monitor
speeds. This area will need two distinct landmarks so that you observe when the vehicle
has passed each landmark so that you can accurately start and stop the timer. You will
need to know with good precision how far apart the two landmarks are.
In order to get the best accuracy in stopwatch mode, the measurement time for a vehicle to
traverse the distance you select should be at least 10 seconds. Therefore, you will want the
landmarks to be at least 100 yards apart for city use and several hundred yards apart in the
country.
Next, you need to tell the radar how far apart the landmarks are. The first time you operate
the stopwatch mode, the distance will be preset to 100 yards. Each press of the “+” key
will increase the distance by 1 yard and each press of the “—” key will decrease the
distance by 1 yard. Also, each press of the Same key increases the distance by 10 yards
and each press of the Opposite key decreases the distance by 10 yards. Finally, each press
of the Front key increases the distance by 100 yards, while each press of the Rear key
decreases the distance by 100 yards.
The timer is started and stopped by pressing the Lock button. To measure a vehicle’s
speed, you must press the Lock button when the vehicle is passing the first landmark.
When the vehicle has reached the second landmark, you should press the Lock button
again. The timer in the Target window will freeze, and the calculated speed of the vehicle
will be displayed in the middle window. Since this is a locked target speed, the T-lock
indicator will be lighted under the middle speed window.
To measure the next vehicle, just press the Lock button. The speed from the previous
vehicle will be cleared, and the time will start at zero. To exit the stopwatch mode, press
the Menu or Mov/Sta key.