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)

Figure 3-2 Heading alignment

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.

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

Page 36
Image 36
Furuno FR-2155 manual Heading Alignment, Picture appears Deviated counterclockwise

FR-2155 specifications

The Furuno FR-2155 is a state-of-the-art marine radar system known for its reliability, exceptional performance, and user-friendly interface. This long-range radar is specifically designed for commercial and recreational vessels, providing operators with crucial situational awareness on the water. With its robust features and advanced technology, the FR-2155 ensures maritime safety and efficiency, making it a preferred choice among navigators and fleet operators.

One of the standout features of the FR-2155 is its high-definition display, which offers a crystal-clear view of radar images. The 15-inch LCD screen provides an easy-to-read presentation of targets, weather conditions, and navigational information. The display is designed to be sunlight-readable, ensuring clear visibility even in bright conditions.

The radar utilizes Furuno's advanced Doppler technology, which allows users to track moving targets accurately. This feature enhances collision avoidance efforts by providing real-time information on the speed and direction of approaching vessels, making it easier to assess potential risks. Moreover, the FR-2155 incorporates an Automatic Radar Plotting Aid (ARPA) function that automatically tracks up to 50 targets, allowing operators to concentrate on navigating rather than manually monitoring multiple targets.

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Connectivity is crucial in modern maritime operations, and the FR-2155 excels in this regard by offering various integration options for onboard systems. It can seamlessly connect with GPS, AIS, and other navigation systems, providing a comprehensive overview of the vessel's environment. Additionally, the radar is capable of outputting data to chart plotters and electronic displays, consolidating critical information for the crew.

In terms of installation, the Furuno FR-2155 is designed for versatility. Its compact design allows for flexible mounting options, accommodating different vessel layouts without compromising performance. The radar also features a powerful magnetron that ensures long-range detection capabilities, effectively covering vast areas of water.

In summary, the Furuno FR-2155 marine radar system stands out due to its high-definition display, Doppler technology, automatic target tracking, and excellent clutter rejection. Its ability to integrate seamlessly with other navigation tools and its user-friendly design make it an invaluable asset for any vessel, ensuring safety and efficiency on the water. For those looking for a reliable radar solution, the FR-2155 is certainly worth considering.