Man-Made Influences - Kustom Signals Falcon HR Operator's Manual

SECTION 8 - INFLUENCES AND INTERFERENCE

8.1 MAN-MADE INFLUENCES

1. Radar units may display incorrect speed readings from
various sources. These include shadowing, combined
speeds, moving cosine and fan interferences (splitting
speeds).
2. Patrol speed shadowing may occur when the radar unit
receives a stronger signal from a large vehicle traveling
the same direction than the groundspeed return signal of
the patrol vehicle. This difference speed may be placed
in the PATROL window and used instead of the proper
patrol speed. See Sec. 8.2.
3. The combined speed effect can occur when the patrol
vehicle and the target vehicle are approaching each
other at low speeds, usually in the 40 to 56 km/h range
each, and at relative short distances, usually less than
100 meters. The radar unit sees a strong reflection from
the combined speed signal and may display this speed
instead of the true patrol speed. The Falcon HR with
speedometer input will eliminate this effect, and the
unit will display the proper patrol and target speeds.
4. The Falcon HR has an onboard battery monitor to alert
the operator when internal voltage nears the minimum
operating voltage. See Sec. 7.1.1 for details.
5. Radio Frequency Interference (RFI) exists when there
are strong RF transmitters in the immediate area of the
radar unit, such as the patrol vehicle's transmitting
radio, high power radio or television stations. Normally
these signals are processed as non-moving and not
8.2