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 signal 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.

(1) Target

(2) Correct

(3) Target pushed

pulled

 

outward

Examples of improper and correct sweep timing

a)Choose ON and then press the ENTER soft key.

b)Transmit on the shortest range and confirm that gain and A/C SEA are properly adjusted.

c)Visually select a target which forms straight line (harbor wall, straight piers).

d)Rotate the ENTER knob to straighten the target selected at step b), and then press the ENTER knob to finish.

23.Choose M. B. SUPPRESSION and press the EDIT soft key.

M. B. SUPPRESSION

{ON ~ OFF

24.Choose ON and then press the ENTER soft key. Main bang is the “black hole” which appears at the display center on short ranges. Rotate the ENTER knob to suppress the main bang. After adjusting, press the RETURN key.

25.Choose RADAR ANTENNA HEIGHT and then press the EDIT soft key.

RADAR ANT. HEIGHT

{HIGH (>10m, 33ft)

~MEDIUM (3-10m, 10-33ft) { LOW (<10m, 33ft)

3-6

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Furuno 1834C, 1954C, 1964C, 1944C, 1934C, 1824C installation manual Examples of improper and correct sweep timing

1824C, 1934C, 1954C, 1834C, 1964C specifications

Furuno is renowned in the marine electronics industry for producing high-quality navigation equipment, particularly its range of radars. Among its flagship models, the Furuno 1944C, 1964C, 1834C, 1954C, and 1934C stand out due to their advanced features, robust technology, and reliability, making them essential tools for both commercial and recreational vessels.

The Furuno 1944C is a 12-inch color radar that boasts a powerful 4 kW output. This model integrates a user-friendly interface that enhances operational convenience, providing mariners with critical navigation information at their fingertips. With features such as advanced target detection and tracking, it helps to identify vessels and obstacles efficiently, which is vital for safe navigation.

Next, the 1964C takes functionality further with its larger 19-inch display and enhanced signal processing capabilities. The 1964C not only provides an impressive range but also features ARPA (Automatic Radar Plotting Aid) for tracking multiple targets. This functionality allows boat operators to assess risk levels and make informed decisions regarding navigation in busy waterway environments.

The Furuno 1834C is another notable entry in the series, maximizing real-time data display. Its ability to work seamlessly with Furuno's Navigator and Fish Finder systems means it doubles in utility for those who require both navigation and fishing capabilities. The intuitive interface makes it easy to access essential information, ensuring that users can maintain their focus on the sea.

The 1954C radar system incorporates some of the most advanced radar technology, providing detailed target information and exceptional clarity through its color display. Its 4 kW output delivers long-range detection, making it a suitable choice for larger vessels operating in various maritime conditions.

Lastly, the Furuno 1934C rounds out this impressive lineup with its compact design, tailored for smaller boats without sacrificing performance. Its solid 4 kW radar provides excellent target separation and enhanced echo clarity. In addition, it is compatible with a variety of additional sensors, allowing operators to expand their situational awareness.

All these models share common features including a weatherproof design, multiple display modes, and customizable settings, ensuring they cater to a diverse range of maritime applications. With Furuno's continuous innovation and commitment to quality, these radar systems embody the brand's legacy in safety and performance at sea.