Samyung ENC SMR-3600, Instructions Manual

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SMR-3600
48
2. How to operate SAMYUNG radar
2-1. A fixed target on PPI screen
•
In case that user wants to fix any fixed target on PPI screen of radar when the own ship
is under way, move the own ship and then the PPI image will move together.
•
This indication way is called ‘RM (Relative Motion)’.
•
TM (True Motion) is an another indication way that the echo image does not move in the
course of PPI image for any fixed targets such as land, the own ship’s position (the center
of PPI) moves along the own ship’s course and speed.
•
In indicating TM, it is required to input the data on bearing and speed.
•
If the mode is changed into TM indication at H-UP mode, it will automatically turn into N-
UP mode. But at TM mode, it does not turn into H-UP mode.
2-2. In monitoring any move of other ships (targets).
•
To monitor the move of other ships (targets), use following function depends on the case.
1) Indication function of radar track
2) Alarm function
2-2-1. Track indication function
•
It is designed to indicate radar track.
As all the PPI images are reconstructed every scan, the movement course of any object
can be figured out.
As the radar displays the low brightness of past images every five or ten scans, the last
scan is even capable of showing the movement course of any object.
But when the radar track indication gets start, the images of low brightness may not stay
even at the 5
th
or 10
th
scan.
•
In the [Short] mode, it is the track 10 to 13 sec. and 25 to 30 sec. in [Long] mode.
•
Select [Short], the brightness will decrease by 1(one) level at every five scans.
•
Select [Long], the brightness will decrease by 1(one) level at every 10 scans.
2-2-2. Alarm function
•
Use the alarm function to set up the guard zone.
Guard zone refers to the zones that are set up on PPI screen.
•
When any target comes in, or gets out of this zone, an alarm may ring.
•
In the alarm levels from (1) to (7), the numbers indicate the image levels (echo gain) that
ring an alarm.
The higher the number is, only the brighter images react, the lower the number is, the
darker images also react.
(Notice) If the gain is very good, an alarm may ring through reacting to noise etc..