MDC-1840BB/1841BB/1860BB/1810BB/1820BB Series Chapter 6
Using The Menu
Operation Manual
93142122-07
6-7
6.2.1.2 VRM Unit
Indication
Meaning
Selection
VRM UNIT
Unit for VRM
NM, KM, SM
6.2.1.3 RANGE RINGS
Indication
Meaning
Selection
RANGE RINGS
Range
Rings
OFF, ON
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.
