Koden MDC-1840BB - HDG (Ships Heading Adjustment); HEIGHT (STC Law Selection); TM RESET (True Motion Reset Position)

MDC-1840BB/1841BB/1860BB/1810BB/1820BB Series Chapter 6
Using The Menu Operation Manual
93142122-07 6-19
6.4.2.5 HDG (Ship’s Heading/Picture Bearing Adjustment)
This function is used to correct the ship’s heading bearing to allow the entire radar
picture to be set to correct bearings.
Indication Meaning Selection
HDG Radar Echo Bearing Set 0.0 to 359.9
Use the following procedure for correction.
First, take an optical bearing of a stationary target located within viewable range using
a standard magnetic compass. Second, measure the target bearing on the radar. If
the deviation is found more than +/- 1 degree on the screen, carry out the following
procedure for correction.
(1) Highlight HDG and press the ENT key.
(2) Press the Joystick up or down to change the bearing, in order to set the radar echo
bearing to coincide with the compass bearing within a specified accuracy.
(3) Press the ENT key to fix the bearing.
6.4.2.6 HEIGHT (STC Law Selection)
This function is used to set the most suited Anti-Clutter Sea control law that
corresponds to the height of a radar antenna from the sea level. The variable range of
the figure is 1 to 9, which does not represent an actual height but an index of the law.
Select the most suited figure while the radar is operated.
Indication Meaning Selection
HEIGHT Antenna Height (STC curve) 1 to 9
6.4.2.7 TM RESET (True Motion Reset Position)
This function is used to set the resetting point of the radar picture in the True Motion
mode when the center of a radar picture reaches the predetermined boundary of the
screen.
Indication Meaning Selection
TM RESET True Motion Reset Position OPPOSITE, CENTER
COURSE
There are two resetting modes available as, CENTER and OPPOSITE.
CENTER: The picture is brought back to the center of the radar screen.
OPPOSITE: The picture is brought back in parallel to the course taken to a point on
the circle of 66 % of the screen radius.
COURSE: The picture is brought back in parallel to the course taken to a point on the
circle of 66 % of the screen radius with keep wide area at heading. Refer to Figure 6.1
for detail.