Permanent Indication Area
The permanent indication area displays the ECDIS status:
AIS (on/off, filtering conditions)
Sound status
Set water level above chart datum
Target CPA criteria
Settings indication
Permanent Indication Area Elements

№ |
Element |
Description |
|---|---|---|
1 |
Scale |
Scale, scaling factor, ENC statuses |
2 |
AIS filter indicator |
Press to navigate to filter settings |
3 |
ASM indicator |
Press to navigate to ASM settings |
4 |
AIS auto-activation indicator button |
Press to navigate to AIS filter settings |
5 |
Sleeping targets indicator button |
Enable/disable sleeping target display. Press to navigate to AIS filter settings |
6 |
Target vector type toggle button |
Switch vector type: T — true; R — relative |
7 |
Vector settings |
Length, time step marks. Press to navigate to vector settings |
8 |
Calculated dangerous depth value |
Automatically calculated dangerous depth value |
9 |
Water level indicator button |
Press to navigate to water level settings |
10 |
Navigational hazards highlighting toggle button |
Control navigational hazard display on ENCs |
11 |
Excluded areas indicator button |
White — all areas enabled; gray — at least one area is excluded. Press to navigate to filter settings |
12 |
Dangerous isoline highlighting exclusion indicator button |
White — dangerous isoline enabled; gray — disabled. Press to navigate to filter settings |
13 |
Navigational hazard monitoring exclusion indicator button |
White — all hazards enabled; gray — at least one hazard is excluded. Press to navigate to filter settings |
14 |
Temporary sound mute button |
Sound on/off. Muting the current alarm audio signal for no more than 5 minutes |
15 |
Alert area |
Active alarms, warnings, and cautions are displayed. Press to navigate to the alarm log |
16 |
Alarm, warning, and caution counter |
Press to navigate to the alarm log |
17 |
ENC scale decrease |
Chart scale decrease button (duplicated by |
18 |
ENC scale increase |
Chart scale increase button (duplicated by |
19 |
Current ENC scale |
Current electronic chart scale in the main ECDIS window |
20 |
Installed chart display preset name |
Current chart display preset |
21 |
ENC name under ship position |
Display of the current electronic navigational chart name |
22 |
Best scale indicator |
Shown when a larger scale ENC is available under the ship’s position |
23 |
Scaling factor |
Parameter X indicates how much the set scale differs from the ENC compilation scale |
Note
Navigational hazard monitoring is performed in the ship’s track lane, regardless of whether hazard highlighting on the ENC is enabled or disabled. Warnings and alarms are generated for navigational hazards within the ship’s track lane.

Scale Operation Modes
№ |
Element |
Description |
|---|---|---|
1 |
Best Scale |
Automatic selection of a larger scale chart under the ship’s position. A larger scale cell will be forcibly loaded and displayed. |
2 |
Fix Scale |
Fixes the scale of the displayed cell, and when the ENC scale changes in the main chart window, the fixed scale range will be displayed permanently. The function can also be enabled with the keyboard shortcut: |
3 |
Scale levels list |
List of ENC scale levels available at the ship’s position. |
Warning
When the scale fix function is enabled, a notification will be displayed in the notification area: “Chart scale fix is enabled. Scale: 1:700000”