Furuno 1734C manual Rejecting Radar Interference, Radar interference

2. RADAR OPERATION

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.

1.5/

H-UP

.500nm	319.9	° M	SIGNAL
SP			PROCESS

I. REJ

LOW

E. AVG

OFF

PULSE

SHORT

E. STR

LOW

RETURN

+359.9° R 1.40nm

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.

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