Furuno FR-2135S manual Heading Alignment, Picture appears Deviated counterclockwise

3.4 Heading Alignment

You have mounted the scanner unit facing straight ahead in the direction of the bow. Therefore, a small but conspicuous target dead ahead visually should ap- pear on the heading line (zero degrees).

In practice, you will probably observe some small bearing error on the display because of the difficulty in achieving accurate initial positioning of the scanner unit. The following adjustment will compensate for this error.

Correct bearing	a	Apparent position	b
relative to heading		of target

a	Target	320	350	000	010	040	b	Target
		340				020
		330				030
		310				050
		300				060
		290				070
		280				080	Apparent
		260				100
		270				090
		250				110	position
		240				120	of target
		230				130
		220				140
		210				150
		200	190	180	170	160

Scanner mounted	Picture appears	Scanner mounted
error to port	deviated clockwise.	error to starboard
(HDG SW advanced)		(HDG SW delayed)

340	350	000	010	020
330				030
320				040
310				050
300				060
290				070
280				080
270				090	Correct
260				100
250				110	bearing
240				120	relative to
230				130
220				140
					heading
210				150
200	190	180	170	160

Picture appears

deviated counterclockwise.

Figure 3-2 Heading alignment

1.Turn on the power. Press [RADAR MENU] [0] [0] [0] [2] [2] to select HL ALIGN on the INITIAL SETTING1 menu.

2.Select a target echo (by gyrocompass, for example) at a range between 0.125 and 0.25 nm, preferably near the heading line.

3.Operate the EBL control to bisect the target echo with the heading line. (The value shown on the display is scanner position in relation to ship's bow.)

4.Press [ENTER] to finish.

3-2