Seiwa SWRx series - Manual (Page 44)

46 User Manual
6.9 When and how should I adjust the Radar Trigger delay?
At first installation. It is required to ensure the Radar is capable to perfectly
measure ranges and avoid distortions. Please follow the procedure described at
Par. 1.7.4.4.
6.10 When should I do the Radar tuning?
Radar tuning is generally not necessary since it is already tuned at the factory.
However in the long run or in case some components are replaced it could be
necessary to perform tuning to achieve the maximum sensitivity.
6.11 Should I use the Manual or Auto Tuning?
We strongly suggest to use the Auto Tuning that generally is capable to give
optimal results.
6.12 How should I do the Manual Tuning?
Follow procedure at Par. 1.7.4.5.
6.13 What is the STC, and how should I operate it?
STC is the Sensitivity Time Constant. It is used to reduce the sensitivity and thus
the clutter in the range closer to the Radar. Operate the STC as to reduce the
echoes coming from the closer ranges to an acceptable level.
6.14 What is the FTC and how should I operate it?
FTC is the Fast Time Constant. It is used to reduce the echoes coming from large
objects that can hide other small objects. It is also called the rain control since it
is capable to reduce the effects of the rain on the display.
6.15 What is the MBS?
The MBS is the Main Bang Suppression. It is used to suppress the stronger echoes
caused by Radar transmission in the receiver. It is like the STC but its operates in
a shorter range.
6.16 I can't turn Chart Overlay On, why?
To turn Chart Overlay On you must have both a GPS and a heading sensor con-
nected to the chart plotter. If the chart plotter doesn't detect such devices it will
automatically disable the Chart Overlay option.
6.17 I can't set the North Up or Course Up navigation mode,
why?
To turn On the North Up or Course Up navigation modes you must have both a
GPS and a heading sensor connected to the chart plotter. If the chart plotter
doesn't detect such devices it will automatically disable such option.
6.18 I can't set up the True Motion mode, why?
To turn On the True Motion mode you must have both a GPS and a heading sensor
connected to the chart plotter. If the chart plotter doesn't detect such devices it
will automatically disable such option.
6.19 Why do I need a Heading Sensor and a GPS to use all
Radar functionalities?
Because the Radar need to know the current position of the boat and its current
heading.