Chapter 6 RA83/84/85/93/94/95 Series
Using The Menu
Operation Manual
6.4.2.3 DELAY (Transmission Timing Adjustment)
This function is used to adjust the transmission delay time in order to coincide the
radar transmission timing with the start of the radar sweep. In practice, the Figure 4.7
in Chapter 4 illustrates the result of the setting, whether it is properly adjusted or not.
To effectively perform this setting, find an appropriate object that is straight across
from your radar.
Indication
Meaning
Selection
DELAY
Radar
Echo
Timing
0 to 99
Carry out the following procedure to set up the proper transmission delay time.
(1) Highlight DELAY and press the ENT key to set up the selection ready status.
(2) Press the Joystick up or the down until a straight picture is shown on the screen.
(3) Press the ENT key to exit.
6.4.2.4
HDG (Ship’s Heading 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.
6.4.2.5
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
6-18
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