3.5 Adjusting Sweep Timing

Sweep timing differs with respect to the length of the signal cable between the scanner unit and the display unit. Adjust sweep timing at installation to prevent the following symptoms:

•The echo of a "straight" target (for example, pier), on the 0.25 nm range, will appear on the display as being pulled inward or pushed outward. See Figure 3-3.

•The range of target echoes will also be incorrectly shown.

(1) Correct

(2) Target pushed

(3) Target pushed

 

inward

outward

Figure 3-3 Examples of correct and incorrect sweep timings

1.Turn on the power. Press [RADAR MENU] [0] [0] [0] [2] [3] to select TIMING ADJ on the INITIAL SETTING1 menu.

2.Transmit on the 0.25 nm range.

3.Adjust radar picture controls to display picture properly.

4.Select a target echo which should be displayed straightly.

5.Adjust the VRM control to straighten the target echo.

6.Press [ENTER].

3.6Suppressing Main Bang

If main bang appears at the screen center, suppress it as follows.

1.Turn on the power. Transmit on a long range and then wait ten minutes.

2.Adjust [GAIN] control to show a slight amount of noise on the display.

3.Select the 0.25 nm range. Adjust the [A/C SEA] control to suppress sea clut- ter.

4.Press [RADAR MENU] [0] [0] [0] [2] to open the INITIAL SETTING1 menu.

5.Press [7] to select 7. MBS.

6.Adjust the VRM control to adjust timing; the EBL control to adjust level.

7.Press [ENTER].

3-3

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Furuno FR-2155 manual Adjusting Sweep Timing, Suppressing Main Bang
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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.

Another remarkable characteristic of the Furuno FR-2155 is its ability to operate in various weather conditions. The radar system can filter out rain, sea clutter, and other interference, ensuring a clear image of surrounding objects. This feature is especially beneficial in adverse weather, where visibility is often compromised, thereby enhancing safety during challenging navigation scenarios.

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.
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