RA83/84/85/93/94/95 Series
Chapter 6
Using The Menu
Operation Manual
6.2.1.4 BRG TRUE/REL (Bearing True or Relative)
Indication Meaning
Selection
BRG TRUE/REL
Bearing
Mode
REL, TRUE
(True or Relative)
6.2.1.5 STERN MKR (Stern Marker)
Indication Meaning
Selection
STERN MKR
Stern
Marker
OFF, ON
6.2.1.6 CURSOR L/L (Cursor Position Indication)
Indication Meaning
Selection
CURSOR L/L
Cursor
Position
OFF, ON
(Latitude/Longitude)
6.2.2 ECHO (Echo Menu)
The ECHO menu has various functions associated with radar echo presentations and
signal processing as described below.
6.2.2.1 TRAILS (Echo Trail Setting)
Indication Meaning Selection
TRAILS
Radar
Echo
Trails
OFF, EVERY, 15SEC, 30SEC,
1MIN, 3MIN, 6MIN, 12MIN
OFF: The TRAILS function is turned off.
EVERY scan: All ship’s echoes are plotted on every picture scan.
15SEC, 30SEC, 1MIN, 3MIN, 6MIN and12MIN: All ships’ tracks are plotted every
specified time, 15 sec, 30 sec, 1 min, 3 min, 6 min or 12 min.
6.2.2.2 IR (Interference Rejection)
Indication Meaning
Selection
IR
Interference
Rejection
OFF, 1, 2, 3, 4
OFF:
The IR function is turned off.
1, 2, 3 and 4:
The effect of interference rejection increases as the number
increases.
6.2.2.3 ENH (Echo Enhancement)
Indication Meaning
Selection
ENH
Radar Echo Enhance
OFF, ON
When the ENH is set to ON, the target echo, which signal level exceeds a
predetermined level, are stretched towards range for better recognition.
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