## Radar Mode Description

When the **Radar Mode** option is enabled, the {{ btn_RM_off }} button will appear in the single-action functions menu.

![ECS with RM off](images/RM_0.png)

To enable **Radar Mode**, press {{ btn_RM_off }}.

![ECS with RM on](images/RM_1.png)

The button will change state to {{ btn_RM_on }}.

### Screen in Radar Mode

![RM on](images/RM_5.png)

| No. | Element | Description |
|---|---------|----------|
| 1 | **Radar Mode** | Mode toggle button: on -- {{ btn_RM_on }} and off -- {{ btn_RM_off }} |
| 2 | **Range Scale** | Switches the range scale of the MIRAN 09 Radar |
| 3 | **Control Panel** | Control panel in the multi-function window. Designed for quick control of the MIRAN 09 Radar functions |
| 4 | **Heading Scale** | Azimuth card linked to the heading sensor. Own vessel is always oriented relative to the azimuth card |

### Range Scale

Switches the range scales of the **MIRAN 09** Radar.

```{hint}
Range scale switching:

 - mouse wheel rotation;
 - +/- buttons on the **range scale**
 - hardware buttons {{ Key_Plus }} and {{ Key_Minus }}
```

```{warning}
`+` decreases the range scale, `-` increases the range scale.
```

### Control Panel

![RM MFW](images/RM_6.png)

| No. | Element | Description |
|---|---------|----------|
| 1 | **Transmit** | Radar transmission: on -- {{ btn_Transmit_on }} and off -- {{ btn_Transmit_off }}. The button physically controls Radar operation |
| 2 | **ENC** | ENC display: on -- {{ btn_ENC_on }} and off -- {{ btn_ENC_off }}. When ENC display is enabled, the scale is synchronized with the set range scale |
| 3 | **RR** | Fixed range rings: on -- {{ btn_RR_on }} and off -- {{ btn_RR_off }}. Enables/disables the display of fixed range rings. Range rings are displayed at equal intervals. Ring distance is recalculated depending on the set range scale |
| 4 | **Rain** | Precipitation clutter compensation (rain, snow, dense fog). Automatic adjustment can be enabled |
| 5 | **Sea** | Sea clutter compensation. Automatic adjustment can be enabled |
| 6 | **Gain** | Radar transceiver gain control |
| 7 | **Auto adjustment** | Enables automatic compensation for sea clutter and precipitation interference |

```{warning}
The controls directly affect the control algorithms of the **MIRAN 09** Radar transceiver.
```

The **Radar Mode** option includes a semi-automatic **ARPA**.

The **ARPA** implementation is not linked to the **ARPA** sensor connected to the ECS.
