Furuno 1623 Adjusting Display Contrast, Brilliance, Choosing the Range, Receiver Sensitivity

Page 12

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

4

Image 12
Contents Model Model Page Important Notices GeneralSafety Instructions Table of Contents Features ForewordWord to the Owner of the Model System Configuration Antenna UnitEquipment Lists Standard supplyOption Name Type Code No Qty RemarksOperation ControlsIndications VRMTurning Power On/Off Brilliance/contrast adjustment windowTransmitting, Standby Startup screenAdjusting Display Contrast, Brilliance Gain adjustment windowChoosing the Range Receiver SensitivityAutomatic gain adjustment Suppressing Sea ClutterSuppressing Rain Clutter Measuring the RangeMeasuring the Bearing Shifting the DisplayZoom User Menu OverviewHeading Line Interference RejectorInterference rejector options Appearance of interferenceNoise Rejector Echo Trail, Trail BrillianceEcho Stretch Guard Alarm Setting a guard zoneWatchman Suppressing Long-range Rain ClutterHow watchman works Watchman time optionsUsing the Prog key Prog KeyOutputting Target Position to a Plotter Programming the Prog keySetting up Nav Data Displays Turning Navigation Data On/Off00.065N 130 00.574E21 nm Nav data displaysSystem Menu System menu descriptionSystem menu 3 of system menu MAINTENANCE, Troubleshooting MaintenanceMaintenance program Period Check point ActionTroubleshooting TroubleshootingReplacing the Fuse If… But… Then…Diagnostics Installation menuDisplay unit Antenna unitTest Pattern Clearing the MemoryReplacing the Magnetron Replacing the Synchro BeltInstallation Antenna Unit InstallationDimensions of antenna platform Mounting on a platformHow to fasten the antenna Unit to the platform Antenna unit, cover removed, top viewAntenna unit, top view Mounting using the optional mounting BracketDisplay Unit Installation MountingMounting considerations Wiring Connecting external equipmentConnecting the external buzzer WiringAdjustments Display unit, rear viewTiming adjustment Nmea port setup, GPS Waas setup Magnetron Heater VoltageAntenna unit, inside view MD boardTurn on power Menu TreeThis page is intentionally left blank Specifications of Marine Radar Power Supply Packing List Page Page Page Marine Radar Page 00080939214