Furuno 2137S-BB, 2837S installation manual EXT Radar 1/2/3/4

3. SETTING AND ADJUSTMENT

Note 2: In the dual radar display, a guard zone set on the main radar is also accommodated on the external radar. When the position of the antennas for the main and external radars is different and the No. 2 guard zone is set on a close-in range, the on-screen guard zone may be shifted slightly from both the main radar antenna reference and external radar antenna reference. Accordingly, on the dual radar display, the actual guard zone area may be shifted slightly. For example, the guard alarm sounds against a target which has almost entered the guard zone. The further the range the smaller the shift; however, there is little shift with the No.1 guard zone (3-6 mile range, fixed). Further, do not set a guard zone such that it straddles a boundary line of the dual radar sector.

A guard zone cannot be set while the dual radar display is active. Set a zone before activating the dual radar display.

1.Open the INITIALIZE menu. See page 3-4.

2.Press the [3] key to show the SCANNER menu.

3.Select 9 [DUAL RADAR] and push the left button.

[DUAL RADAR]

1BACK

2DUAL RADAR OFF/ COMBINE

3COMBINE MODE OWN/EXT

4COMBINE SECTOR START 000° ANGLE 000°

5COMBINE RANGE START 00.00NM LENGTH 00.00NM

6EXT RADAR 1/2/3/4

4.Select 2 [DUAL RADAR] and push the left button.

5.Select OFF or COMBINE as appropriate and push the left button. For COMBINE, the ANTENNA box at the top left-hand side becomes gray.

OFF: Turn off the dual radar display.

COMBINE: Display a part of the external radar image in the window on the main radar.

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