FAST-18T Radar Speed Display Trailer user Manual
10
OPEN ROAD
Set the “MS” (the radar detected Minimum Speed limit) for 45mph, the “Slow Down for 70mph, “Red and
Blues” flashing pattern for 75mph, “Flashing Speed” for 65, and the “Blanking Speed for 85 (to prevent vehicles
speeding by the sign to see how fast they can go). This is what will happen: Normal vehicles will just see their
speeds from 45 to 65 MPH. Vehicles moving at 66 to 69mph will see their over-speed flash. If they travel over
70 mph, the red “Slow Down” message will flash. Vehicles speeding over 75mph will see the “Red and Blues”
flashing lights pattern. No speed will be displayed at 85mph or above.
DIRECTIONAL ARROWS
There are five flash patterns of “Directional Arrows” available in the display.
Setting them up is just like before: First, turn power on. After the brightness
number changes into a two-letter code, start to push the button and stop on
either arrows LEFT (“<<”) or arrows RIGHT (“>>”) depending on your directional
need. Only one arrow direction can be chosen. The display will now go into that
particular arrow mode. Whichever set of arrows you stop on, the display will now
show a steady two-letter “FP” for “Flash Pattern” code. After five seconds the “FP”
will change into a number. Start pushing the programming button and notice
that you can select numbers 1 to 4. These numbers define a pattern that the
arrows will follow which are described in detail below:
ARROW PATTERN NUMBERS
1. Selects a FAST FLASHING RATE SET OF ARROWS
2. Selects a MEDIUM FLASHING RATE SET OF ARROWS
3. Selects the SLOW FLASHING RATE SET OF ARROWS
4. Selects a SOLID SET OF ARROWS
5. Selects a SCROLLING OR MOVING SET OF ARROWS
Choose the numbered arrow pattern that you want to display to your traffic. Push the button until it stops on
that number (choice). Wait 5 seconds for it to “take” and the sign is ready for directing traffic.
2.
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.
Left Directional Arrows
Right Directional Arrows
