Furuno FR-8125 ユーザーズマニュアル

1.  OPERATION

There are three default custom setups for the internal computer of the radar (see 
paragraph 1.28.2 for a description). You can adjust these settings on the [Custom 1], 
[Custom 2] and [Custom 3] menus to meet your navigation needs.

To activate a custom setup, press the CUSTOM key. The CUSTOM key switches be-
tween Custom 1, Custom 2 or Custom 3 each time you press the key. (Custom setup 
numbers which are turned off are ignored.) The selected custom setup name is shown 
at the upper-left corner. To escape from custom setup, operate any control.

[Custom1(2 or 3)] Turn on/off each custom program.

[Copy]

Copy settings from the [Echo] menu. The message "Com-
plete" appears after the copying is completed.

[Gain Mode]

[Auto]: Automatic gain adjustment according to noise level.
[Manual]: Manual gain adjustment

[Manual Gain]

Copy the current position of the GAIN knob when you do 
[Copy]. This item is for read-only.

[Sea Mode]

[Auto]: Automatic sea clutter adjustment according to sea 
state.
[Manual]: Manual sea clutter adjustment.

[Auto Sea]

[Coastal]: Suppress both land and sea clutter.
[Advanced]: Automatically discriminate land echoes from 
sea reflections to suppress only sea reflections.

[Manual Sea]

Copy the current position of the A/C SEA knob when you do 
[Copy]. This item is for read-only.

[Rain Mode]

[Auto]: Automatic rain clutter adjustment according to rain 
cloud density.
[Manual]: Manual rain clutter adjustment.

[Auto Rain]

[Calm]: For light rain.
[Moderate]: When you can not reduce the rain clutter with 
[Calm] mode.
[Rough]: For heavy rain.

[Manual Rain]

Copy the current position of the A/C RAIN knob when you do 
[Copy]. This item is for read-only.

[A/C Auto]

[Off], [On]

[Pulse Length]

[Short] or [Long], you can select on 1.5, 1.6, 3.0 and 3.2 nm 
ranges.

[Echo Stretch]

[Off], [1], [2], [3]

[Echo Average]

[Off], [1], [2], [Auto]

[Noise Rejector]

[Off], [On]

[Wiper]

[Off], [1], [2]

[Int Rejector]

[Off], [1], [2], [3]