1.Identify a suitable target (for example, ship or buoy) at a range between 0.125 to 0.25 miles, preferably near the heading mark. To minimize error, keep echoes in the outer half of the picture by changing the range.

2.Press and hold down !and " together (about 10 seconds) to display the installation menu.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Total hrs radar

 

 

 

SEL MENU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOTAL ON TIME

 

 

 

 

 

BY /KEY

 

 

00000 : 00

 

 

 

 

 

 

 

 

 

has been on

 

 

 

 

 

 

 

 

 

 

TOTAL TX TIME

 

 

 

 

 

Total hrs radar

 

 

 

 

 

 

 

 

Menu

 

 

 

1. ADJ HDG

 

 

 

00000 : 00

 

 

 

 

 

 

 

 

 

 

 

 

2. ADJ TMG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

has been trans-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. NM/KM

 

 

 

TUNE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

mitted

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADJUSTPICTURE ORIENTATION

 

 

 

 

 

USING /

KEYS SO THAT

Tuning bar

 

 

 

 

 

 

 

 

 

HEADING MARK BISECTS TARGET

(for technicians)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.25NM

.125

WP- - -. - -°M

- - -. - - NM

Target

Heading marker

CSE

- - -. - -°M

LOCATED DEAD AHEAD.

Instructions for item selected appears here. (example: heading adjustment)

Figure 20 Installation menu

3.Select ADJ HDG. Your display should now look something like the one shown in Figure 21.

0.25 NM

.125

30°

30°

 

SEL MENU

TOTAL ON TIME

BY /KEY

00000 : 00

1. ADJ HDG

TOTAL TX TIME

00000 : 00

2. ADJ TMG

TUNE

3. NM/KM

 

ADJUST PICTURE ORIENTATION

 

 

USING /

KEYS SO THAT

 

HEADING MARK BISECTS TARGET

LOCATED DEAD AHEAD.

Figure 21 Display for adjustment of heading

4.Press !or" to bisect the target selected at step 1 with the heading marker.

5.Press MENU.

LL - - °

- -. - - N

SPD

- - - °

- -. - - E

- -. - KT

9.4°

0.015 NM

Figure 22 How to adjust heading

6.As a final test, move the boat towards a small buoy and confirm that the buoy shows up dead ahead on the radar when it is visually dead ahead.

3) Sweep timing

This adjustment ensures proper radar performance, especially on short ranges. The radar measures the time required for a transmitted echo to travel to the target and return to the source. The received echo appears on the display based on this time. Thus, at the instant the transmitter is fired, the sweep should start from the center of the display (sometimes called sweep origin.)

A trigger pulse generated in the display unit goes to the antenna unit through the antenna cable to trigger the transmitter (magnetron). The time taken by the signal to travel up to the antenna unit varies, depending largely on the length of signal cable. During this period the display unit should wait before starting the sweep. When the display unit is not adjusted correctly, the echoes from a straight local object (for example, a harbor wall or straight pier) will not appear with straight edges – namely, they will be seen as pushed out or pulled in near the picture center. The range of objects will also be incorrectly shown.

10

Page 16
Image 16
Furuno 1622 installation manual Sweep timing, 25NM

1622 specifications

The Furuno 1622 is a state-of-the-art marine radar system designed for small to mid-sized vessels, providing exceptional navigational capabilities and safety features. Renowned for its reliability and advanced technology, the Furuno 1622 stands as an essential tool for both commercial and recreational boaters who demand precision and performance on the water.

One of the standout features of the Furuno 1622 is its high-resolution display, which provides crystal-clear imagery of surrounding waters and targets. The radar system boasts a 162 nautical mile range, allowing operators to detect objects from a considerable distance, which aids in collision avoidance and situational awareness. The user-friendly interface ensures easy access to essential functions, enabling quick adjustments to radar settings depending on varying sea conditions.

The Furuno 1622 utilizes advanced digital signal processing technology, which significantly enhances target detection capabilities while minimizing clutter in the display. This technology allows users to differentiate between land and sea targets, ensuring that boaters can identify navigational hazards with clarity. Additionally, the radar system features a 12 kW magnetron, which provides powerful transmission capabilities for accurate target return.

In terms of installation, the Furuno 1622 is designed to be adaptable, accommodating various mounting options for optimizing performance based on boat size and structure. Its compact design ensures that it can fit seamlessly into different vessel layouts, enhancing its usability without compromising aesthetic appeal.

Safety is a top priority in marine environments, and the Furuno 1622 emphasizes this through features such as the MARPA (Mini Automatic Radar Plotting Aid) system. This technology allows operators to track multiple targets and predict their movements, providing valuable information for decision-making at sea. Furthermore, the radar supports integration with other navigational systems, enhancing overall maritime safety through comprehensive situational awareness.

The radar system's durability and weather-resistant design ensure that it can withstand the harsh marine environment, making it a long-lasting investment for boaters. With its combination of advanced features, robust technology, and user-friendly operation, the Furuno 1622 remains a top choice for mariners seeking reliable radar solutions for safe and efficient navigation.

Overall, the Furuno 1622 encapsulates the ideal balance of performance, reliability, and ease-of-use, making it a critical asset for any vessel navigating the open waters.