Section 8--Interference
8.3
NOTE: The Directional Golden Eagle II has special
software algorithms that allow the radar to correct
a combined reading. If the user suspects that the
radar is displaying a combined speed, entering and
exiting the Hold Mode quickly should correct the
combined reading.
4. Intermittent readings caused by pointing the antenna at
the indicating unit (scanning) should not be a concern to
the trained operator. Proper mounting of the antenna on
a dash mount will eliminate this problem. In addition,
these readings would not satisfy all the requirements of
proper tracking history.
5. If the power supply voltage drops below the minimum
operating voltage, the Directional Golden Eagle II will
not display any new speed-readings until the low voltage
condition no longer exists. "Lo" will be displayed in the
TARGET window.
6. Radio Frequency Interference (RFI) exists when there
are strong RF transmitting stations in the immediate area
of the radar unit, such as the patrol vehicle's transmitting
radio, high power radio or television stations. These
sources of interference will be detected by the
Directional Golden Eagle II and the TARGET window
will display "rFi" until the source of interference is
eliminated.
7. The vehicle's heater and A/C fan is a known source of
radar interference. These fans create many signals, both
interference noise and true Doppler. These signals can
cause conventional radar units to display the fan's speed,
rather than a weaker target vehicle's speed. The
Directional Golden Eagle II uses directional DSP
processing and other software techniques to eliminate as
many of these fan speed signals as possible. The
operator should always be aware of the possibility of
these fan signals being displayed as target speeds.
