Furuno 1824C-BB, GD-1920C-BB manual Range Scale, Pulselength, Range scales nm, sm, Range scales km

2. RADAR OPERATION

2.7Range Scale

The range setting determines the size of the area (in nautical miles) that will appear on your display. In addition, the range setting will also automatically adjust the range ring interval so that accurate range measurements may be made while operating on any range setting.

The range, range ring interval and pulselength appear at the top left-hand corner of the display.

Press the [RANGE (+ or -)] key to change the range scale.

Range scales (nm, sm)

Range	0.125	0.25	0.5	0.75	1	1.5	2	3	4	6	8	12	16	24	36	48	64	72
Ring	0.0625	0.125	0.125	0.25	0.25	0.5	0.5	1	1	2	2	3	4	6	12	12	16	18
Interval
No. of	2	2	5	4	5	4	5	4	5	4	5	5	5	5	4	5	5	5
Rings

Range scales (km)

Range	0.25	0.5	0.75	1	1.5	2	3	4	6	8	12	16	24	36	48	64	72
Ring Interval	0.125	0.25	0.25	0.25	0.5	0.5	1	1	2	2	3	4	6	12	12	16	18
No. of Rings	2	5	4	5	4	5	4	5	4	5	5	5	5	4	5	5	5

Note 1: Maximum range depends on the network radar as shown below.

Model 1824C-BB: 24 nm

Model 1834C-BB: 36 nm

Model 1934C-BB: 48 nm

Model 1944C-BB: 64 nm

Model 1954C-BB, 1964C-BB: 72 nm

Note 2: You may choose which ranges to use from the RADAR RANGE SETUP menu. For details see paragraph 7.2.2. This function is not available with the GD-1920C-BB.

2.8Pulselength

The pulselength in use is displayed at the upper left corner of the display. Appropriate pulselengths are preset to individual range scales. Therefore, you are not usually required to select them. If you are not satisfied with the current pulselength setting, however, it is possible to change it for the ranges shown below. Generally, select a longer pulse for longer detection range and shorter pulse for better range discrimination.

1.5nm, 1.5 sm, 3 km: Short pulse, medium pulse 3 nm, 3 sm, 6 km: Medium pulse, long pulse

1.If not displayed, press the HIDE/SHOW key to show the radar soft keys.

2.Press the A: SIGNAL PROC. soft key.

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