Degaussing Interval; Background Color; Clutter Sweep - Furuno FR-1500 Operator's Manual

1.42 Degaussing Interval

The screen is degaussed automatically at certain time intervals, as well as each time the radar is
turned on, to eliminate color contamination caused by earth's magnetism or magnetized ship
structure. You can select the degaussing interval and the degaussing degree as follows:
1. Press the [MENU] key followed by the [0] key four times to select OTHERS.
10. Press the [3] key to display the DEGAUSS menu.
11. Press the [2] key to select desired degaussing interval (OFF, 30 seconds, 1, 2 minutes) in
the DEGS INTVL field.
12. Press the [3] key to select desired degaussing degree (45°, 90°, 135°) in the DEGS DEG
field. For example, selecting 45° will automatically degauss the screen when the ship
makes a turn which is between 45° and 89°.
5. Press the [ENTER/SELECT] key followed by
the [MENU] key.

1.43 Background Color

The [BKGND COLOR] key selects the color of the background, characters, menu, markers and
indications as below. Each press of the key selects one of five color combinations.
Marks
1
Radar display area BLK (black)
Outside radar display BLK (black)
area
Characters GRN (green)
Menu YEL (yellow)
Menu highlight YEL
EBL/VRM BLU (blue)
Range rings GRN (green)
Cursor WHT (white)
Heading line GRN (green)
Target alarm zone WHT (white)
North mark GRN (white)
Stern marker GRN (white)

1.44 Clutter Sweep

The clutter sweep feature suppresses sea and rain clutters within the trackball-selected area, to
discriminate specific targets from noise. The user may select the area to process and the level of
suppression to apply as follows:
1. Press the [MENU] key.
2. Press the [5] key twice to select the ECHO SIG menu.
1. ↑
2. DEGS INTVL
3. DEGS DEG
2 3
L-BLU (light L-BLU (light
blue) blue)
BLK (black) BLK (black)
GRN (green) GRN (green)
YEL (yellow) YEL (yellow)
YEL YEL
GRN (green) GRN (green)
WHT (white) WHT (white)
GRN (green) GRN (green)
WHT (white) WHT (white)
L-BLU (blue) L-BLU (blue)
WHT (blue) WHT (blue)
WHT (blue) WHT (blue)
-1.38-
DEGAUSS
OFF 30 sec 1 2 min
OFF 45° 90° 135°
Setting
4
L-BLU (light
blue)
L-BLK
WHT (white)
YEL (yellow)
YEL
GRN (green)
WHT (white)
GRN (green)
WHT (white)
L-BLU (blue)
WHT (blue)
WHT (blue)
5
BLK (black)
BLK (black)
RED
YEL (yellow)
RED
L-BLU (blue)
GRN (green)
WHT (white)
GRN (green)
WHT (white)
GRN (white)
GRN (white)