Furuno 1823C manual Zooming in on radar targets, Zooming in on ARP, TTM targets

2. RADAR OPERATION

2.15Zoom

The zoom feature allows you to double the size of the area selected with the “zoom circle.” It is available on any range but is inoperative in true motion and when the display is shifted.

2.15.1Zooming in on radar targets

1.If not displayed, press the [HIDE/SHOW] key to show the radar soft keys.

2.Use the trackball to set the cursor where you want to zoom.

3.Press the ZOOM & D. BOX soft key to show ZOOM & D. BOX soft keys.

4.Press the ZOOM ON/OFF soft key to select ON. A solid circle, called the “zoom circle,” appears on the display.

5.To release the cursor, press the CURSOR FLOAT soft key. (The solid circle changes to a dashed one.) To relocate the zoom circle, select location with the trackball, then press the CURSOR LOCK key.

6.To quit the zoom function, press the ZOOM ON/OFF soft key to select OFF.

Zoom circle

3nm	319. 9° M
12/LP		ZOOM &
HU		D. BOX
		ZOOM
		ON /OFF

CURSOR

FLOAT

ARP

TGT ZM

D. BOX

ON/ OFF

RETURN

+ 359.9 ˚R 5.727nm

Zoom window

Requires optional ARP Board in

Model 1800/1900 series network radar.

Not shown otherwise.

Zoom

2.15.2Zooming in on ARP, TTM targets

You may zoom in on TTM (Tracked Target Message) and ARP targets. TTM targets can come from a NavNet connected radar, or from other ARP radar that is outputting the TTM message. (TTM is a NMEA 0183 data sentence that is an available output from some ARP capable radar.) Target numbers must be turned on to use this function. This can be done by enabling the target ID number option in the ARP SETUP menu.

1.If not displayed, press the [HIDE/SHOW] key to show the radar soft keys.

2.Press the ZOOM/D. BOX soft key to show ZOOM & D. BOX soft keys.

3.Press the ZOOM ON/OFF soft key to select ZOOM ON.

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