Standard Horizon CP180 Marine RADAR User Manual


 
Page 38 Radar Operation Manual
5.6 The Radar sensitivity appears to be low
Radar sensitivity depends on several factors. To increase sensitivity act as follows:
· Execute the Automatic Tuning procedure to ensure that the Radar is perfectly tuned.
· Increase the GAIN.
· Reduce the SEA clutter, since the SEA clutter has the effect to reduce the echo intensity
of nearby targets.
· Turn Off the RAIN clutter, since it has the effect to reduce the echoes intensity of big
targets.
5.7 Radar targets are delayed with respect to the antenna rotation?
The Radar image on the GPS is updated every 2.5 seconds as information is acquired from
the antenna. This could cause a mis-match between the actual target position and the
targets shown on the screen.
5.8 Radar target appear to be pulsing
This is a rather common problem for any Radar. For long distance targets, when the Radar
pulse hits a target, the reflection strength which depends on the hit angle. Perpendicular hits
give the strongest echo. Hard objects give stronger echo and soft objects give weaker echo.
To eliminate the pulsing effect of Radar targets the Trails function may be used.
5.9 Stationary target appear to be oscillating around their actual position
Radar targets may appear to be oscillating around their actual position due to the movement
of your vessel. In fact even a minimum oscillation of the position where the Radar is located
may cause an apparent movement of the targets detected.
For short distance targets, surface waves lower the detectivity. The SEA clutter should be
adjusted to properly to maximize the detectivity.