Kustom Signals Falcon HR, Operator'S Manual

Page: 30 / 97

SECTION 5 - GENERAL THEORY OF OPERATION
5.3
Target Doppler Signal : Upon receiving the "target"
Doppler signal, the processing unit automatically computes
the difference between the speed of the patrol vehicle and
the target vehicle. The speed of the approaching vehicle
registers in the TARGET window. If, for example, a patrol
vehicle is traveling 88 km/h and an approaching vehicle is
traveling 104 km/h, the Falcon HR would process the
groundspeed of 88 km/h and the combined speed of 192
km/h. The DSP would subtract the patrol speed from the
combined speed (192 - 88 = 104). The PATROL window
would display 88 and the TARGET window would display
104.
Moving Same Direction Mode : In the moving same
direction mode of operation, the target Doppler is received
from a target traveling in the same direction as the patrol
vehicle. These "groundspeed" Doppler and the
"difference" Doppler signals are received and sent to the
DSP. The Difference Doppler is the speed difference
between the patrol vehicle and a vehicle traveling in the
same direction. The Falcon HR uses its directional
determination capabilities to automatically determine if the
target vehicle is traveling faster or slower than the patrol
vehicle. The unit will display the patrol speed then
automatically add or subtract the "difference" speed to the
patrol speed for the target speed.
If the patrol vehicle's speed was 88 km/h and a target was
traveling in the same direction at 112 km/h, the Falcon HR
would display 88 in the PATROL window then add the
"difference” Doppler signal (24) to the patrol speed (88 +
24 = 112) and display 112 in the TARGET window.