FAST-18 Pole-Mount Radar Speed Display Sign user Manual
8
VIOLATOR ALERT SETTINGS SUMMARY
1. Push button until display shows “VA”
2. Wait five seconds for MS (Minimum Speed) to display.
Push the button to set the desired speed.
3. Wait five seconds for SL (SLOW) to display.
Push the button to set desired speed.
4. Wait five seconds for RB (Flashing Red & Blue) to display.
Push the button to set desired speed.
5. Wait five seconds for LF (Flashing Strobe) to display.
Push the button to set desired speed.
6. Wait five seconds for FL (Flashing Speed) to display.
Push the button to set desired speed.
7. Wait five seconds for BL (Blanking Speed) to display.
Push the button to set desired speed.
8. After five seconds the last speed sets and the display goes dark
TRAFFIC SET-UP EXAMPLES
35 MPH NEIGHBORHOOD SPEED LIMIT
Set the “MS” (the radar detected Minimum Speed limit) at 5 mph, the “SLOW” message at 35, “Flashing Speed”
at 40mph, the “Red & Blues” at 50 and the Blanking Speed at 60. This is what will happen: Oncoming vehicles
speeds will be shown on the sign traveling from 5 to 34 MPH. If the vehicle is traveling 35 to 39, the SLOW
message will flash. Between 41 and 49, their speed will be displayed while flashing. Over 50MPH, the display
will show the Red & Blue flashing lights pattern. At 60 and above, the display is blank. As the vehicle slows, the
appropriate “Violator Alert” will show for their speed until they reach 34 MPH where their speed is displayed
normally.
SCHOOL ZONES
Set the “MS” (the radar detected Minimum Speed limit) at 15 mph (so drivers in a school zone obeying the
speed limit are not distracted), the “Flashing Speed” at 16mph and the “Blanking Speed” for 40mph. This is
what will happen: For speeds under 15 MPH, no speed will be displayed. The display will flash the speed for
vehicles traveling between 16 and 39 MPH. No speed will be displayed above 40 MPH.
3.
READOUT RESULTS
The readings from the radar unit are filtered. The radar unit is very sensitive, so for continuity of the oncoming
driver, not every reading may be displayed. If there is a difference between vehicle speeds of more than 3
miles per hour per second (extreme acceleration or deceleration), the display will simply hold the last recorded
speed for a few seconds rather than jumping back and forth between speeds. A couple of examples:
Example 1:
If a vehicle is traveling at 35mph and the car behind him is traveling at 40mph, the sign will display
the first vehicle at 35 until it passes. The first vehicle’s speed will show for 1-1/2 seconds after it
passes, so the radar can establish and display vehicle two’s speed at 40mph.
Example 2:
If a vehicle accelerates towards the sign from a stop at greater than 3 miles per hour per second,
no speed will be displayed. If a vehicle accelerates at 3 miles per hour per second or less, the sign
will display the speed as it increases.