Section 8--Interference
8.1
8. INTERFERENCE
8.0 GENERAL
Interferences from external sources may affect the standard
operation of any radar device, including the Directional
Golden Eagle II. These influences can be natural or man-
made, however the Digital Signal Processing circuitry will
eliminate most of these influences and a knowledgeable
operator should be able to determine the nature of the
influences and their effect, if any, on the performance of the
Directional Golden Eagle II.
8.1 NATURAL INFLUENCES
1. Heavy rains and blowing dust can cause a scattering
effect, which may reduce the effective range of the
Directional Golden Eagle II. The patrol speed can also
be affected by driving rain. It is recommended that the
operator check the patrol speed-reading and the patrol
vehicle's speedometer often during rainy periods.
2. Terrain can affect the range of the Directional Golden
Eagle II. Improper aiming of the antenna can cause the
radar to appear to have short range. If the target vehicle
were on a slight incline, the antenna could be shooting
short of the intended target vehicle.
3. Strong reflections from roadside objects, such as large
signs, parked cars and buildings can cause double
bounce reflections, which are the same as the patrol
speed. The directional processing of the Directional
Golden Eagle II detects most of these "harmonics" as
non-moving signals and they not displayed. This allows
opposite mode vehicles traveling at the same speed as
the patrol vehicle to be displayed correctly.
