1.5Adjusting Display Contrast, Brilliance

1.Press the [POWER/BRILL] key momentarily to show the brilliance/contrast adjustment window.

BRILL/CONTRAST

TX/STBY - PRESS [MODE]

 

LOW

HIGH

CONT:

 

4

 

 

 

 

 

 

 

 

LOW

HIGH

BRILL:

 

 

 

 

 

 

9

 

 

 

 

 

 

[MENU/ESC] : Exit.

Brilliance/contrast adjustment window

2.Press ◄ or ► to adjust contrast.

3.Press ▲ or ▼ to adjust brilliance.

4.Press the [MENU/ESC] key to escape.

Note 1: Windows other than menu windows are erased when there is no operation within about 10 seconds.

Note 2: When the power is reapplied after turning off the equipment with minimum brilliance, the radar starts up with minimum brilliance, after the startup screen appears. Adjust the brilliance as necessary.

1.6 Choosing the Range

The range selected automatically determines the range ring interval, the number of range rings and pulse repetition rate.

Press the [RANGE+] or [RANGE-] key to select a range. The range and range ring interval appear at the top left corner on the screen.

1. OPERATION

Range 6.0 nm

Range ring

2.0

 

interval

 

EBL - - - .-°

 

RNG 03.2nm

VRM - - - -nm

 

BRG 60.2°

 

TTG 02H21M

 

 

 

Location of range and range ring

interval indications

1.7 Receiver Sensitivity

The [GAIN] key adjusts the sensitivity (gain) of the receiver. It works in precisely the same manner as the volume control of a broadcast receiver, amplifying the signals received.

The sensitivity is adjusted automatically according to sea conditions, and you may also further adjust it manually to fine tune. The proper setting is such that the background noise is just visible on the screen.

If you set up for too little sensitivity, weak echoes may be missed. On the other hand excessive sensitivity yields too much background noise; weak targets may be missed because of the poor contrast between desired echoes and the background noise on the display.

1.Press the [GAIN] key consecutively until the display shown below appears.

GAIN

AUTO : MODERATE

MANU20

[GAIN] : A/C SEA MENU

[MENU/ESC] : Exit.

Gain adjustment window

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Furuno 1623 manual Adjusting Display Contrast, Brilliance, Choosing the Range, Receiver Sensitivity, Gain adjustment window