Furuno MARINE RADAR 1823C User Manual

2. RADAR OPERATION
2-17
2.14 Rejecting Radar Interference
Radar interference may occur when near another shipborne radar that is
operating in the same frequency band as your radar. Its on-screen appearance
looks like many bright dots either scattered at random or in the form of dotted
lines extending from the center to the edge of the display. Interference effects
are distinguishable from normal echoes because they do not appear in the same
place on successive rotations of the scanner.
Be sure to turn off the interference rejector when no interference exists – weak
targets may be missed.
Radar interference
1. If not displayed, press the [HIDE/SHOW] key to show the radar soft keys.
2. Press the SIGNAL PROC. soft key.
Shown when radar
source is the Model
1800/1900 series
radar. Not shown
otherwise.
SIGNAL
PROCESS
RETURN
359.9 ˚R
11.70 nm
+
I. REJ
OFF
E. AVG
OFF
PULSE
E. STR
OFF
12/
H-UP
3nm
LP
319. 9
°M
SIGNAL PROCESS soft keys
3. Press the I. REJ soft key successively to choose the interference rejection
level desired; LOW, MED, HIGH or OFF.
4. Press the RETURN soft key to finish.
The display shows IR L (Low), IR M (Medium) or IR H (High) when the
interference rejector is on.

Furuno MARINE RADAR 1823C Specifications

General

Type	Marine Radar
Display Size	10.4 inches
Resolution	800 x 600 pixels
Power Output	4 kW
Antenna Type	Open Array
Rotation Speed	24 RPM
Frequency	9410 MHz (X-band)
Display	LCD
Power Supply	12/24 VDC
Range Scales	0.125, 0.25, 0.5, 12, 24, 48 nautical miles