Decatur Electronics Genesis II Select - Fan Interference; Batching; Electromagnetic Interference (EMI); Multi-Path Beam Cancellation

Genesis II Select
™
User’s & Installation Manual
16/September/2015
47
The following table shows the eect that an increasing angle has
on a displayed speed.
Horizontal Angle Degrees
Actual
Speed
0° 1° 3° 5° 10° 15° 20° 30° 45° 60° 90°
Displayed speed:
50 km/h 50 49 49 49 49 48 46 43 35 25 0
65 km/h 65 64 64 64 64 62 61 56 45 32 0
80 km/h 80 79 79 79 79 77 74 69 56 40 0
90 km/h 90 89 89 89 88 86 84 77 63 45 0
100 km/h 100 99 99 99 98 96 93 86 70 50 0
110 km/h 110 109 109 109 108 106 103 95 77 55 0
Table 7.2.1
Actual and displayed speeds at dierent antenna-to-target angles.
Small angles (less than 10°) have little eect on displayed speeds.
As the angle increases, the displayed speed decreases. At 90°, the
displayed target speed is 0 km/h.
7.2.2 Fan Interference
Fan interference is the most common form of interference that you
are likely to experience. It is caused when the radar measures the
speed of the motor vehicle blower fan. Changing the fan speed
causes a proportional change in the displayed speed.
7.2.3 Batching
With the DSP algorithms the Genesis II Select™ uses, batching will
not occur.
7.2.4 Electromagnetic Interference (EMI)
Operating electric motors can produce EMI. With the DSP
algorithms the Genesis II Select™ has eliminated this.
7.2.5 Multi-Path Beam Cancellation
The Genesis II Select™ is immune to multi-beam cancellation.