## Configuring the **MIRAN 09** Network Radar

```{important}
Configuration of the **MIRAN 09** network Radar. Configuration must be performed by a specialist with the appropriate technical knowledge, skills, and qualifications who has been trained by the ECDIS manufacturer.
```

```{warning}
Incorrect configuration of the **MIRAN 09** Radar may result in incorrect display of the radar image on the chart and erroneous assessment of the navigational situation.
```

Source configuration:

| Menu path |
|-------------|
| {{ menu }} → {{ settings }} → Radar → Settings |

![Radar source configuration window](images/Radar_Miran_0.png)

| No. | Element | Description |
|---|---------|----------|
| **1** | **Settings tree** | Hierarchical structure of radar source configuration sections |
| **2** | **Oscillogram** | Signal waveforms |
| **3** | Return to Radar list | Button to return to the list of all connected radar sources |

2. **Network settings:**
   - Set the network connection parameters for the network Radar
   - Apply network settings -- press **Apply**
   - Press **Reconnect**

   If configured correctly, the connection statuses in the information group (4) will change and the data packet counters will update.

```{note}
ECDIS contains default settings from the ONWA Radar manufacturer. Modify the connection settings if necessary.
```

```{tip}
When configuring network parameters, verify:
- Correct IP address of the radar source (must match the radar processor settings)
- Network connection between ECDIS and the radar source
- Absence of port conflicts with other systems
- Stability of data packet counters — they should continuously increase when the source is active
```

![Network settings](images/Radar_Miran_1.png)

| No. | Element | Description |
|---|---------|----------|
| **1** | **MAC** | Radar MAC address |
| **2** | **IP** | Radar network address |
| **3** | **Master** | Network address of the Radar control device |
| **4** | **Gate** | Network gateway |
| **5** | **Mask** | Subnet mask |
| **6** | **Video data** | Video stream data, status, settings, and state |
| **7** | **Control Channel** | Control channel data, status, settings, and state |
| **8** | **Status 1** | Radar image transmission port data and status |
| **9** | **Status 2** | Parametric data transmission port data and status |
| **10** | **Apply** | Apply the current settings |
| **11** | **Reconnect** | Force device reconnection |

3. **Alignments. Antenna position**

![Antenna position alignment](images/RM_4.png)

| No. | Parameter | Description |
|---|----------|----------|
| **1** | **Antenna coordinates** | Set the Radar antenna coordinates |
| **2** | **Antenna position** | Antenna installation point on the vessel diagram |
| **3** | **Distance alignment** | Distance correction — superimposition of ENC and radar images |
| **4** | **Bearing alignment** | Bearing correction — superimposition of ENC and radar images |
| **5** | **Blanking sector** | Enables the antenna radiation blanking sector. In the blanking sector, the transceiver does not transmit a signal |
| **6** | **Start** | Start of the radiation blanking sector. Angle in the ship's relative bearing system. Measured from the trigger position (arrow on the antenna housing), clockwise from 0 to 359 degrees |
| **7** | **Width** | Width of the radiation blanking sector, in degrees |

```{warning}
It is recommended to verify the correctness of the Radar antenna alignment before each voyage.

Alignment is performed relative to a point-identified landmark, by matching the landmark echo in bearing and distance.
```

```{important}
Incorrect antenna alignment causes displacement of the radar image relative to the chart, which may create a dangerous navigational situation. Alignment verification and correction must be performed:
- When configuring a radar source
- After repair work on the Radar antenna
- When systematic discrepancies between the radar image and chart information are detected
- At least once a month during operation
```

```{warning}
For correct radar image overlay, the coordinates of the GNSS antenna(s) and the Radar antenna must be entered.

Compensating for the GNSS antenna position offset through antenna alignment is not possible.
```

5. **Primary settings**

![Primary settings](images/RM_2.png)

| No. | Parameter | Description |
|---|----------|----------|
| **1** | **Equipment** | Manufacturer name |
| **2** | **Name** | Radar name — entered during installation |
| **3** | **Transmit** | Radar scanner transmission indicator |
| **4** | **Radar image display range** | Select the radar image display distance. Changes the Radar range scale. |
| **5** | **Transparency** | Radar image transparency control |
| **6** | **Brightness** | Radar image brightness control |
| **7** | **Contrast** | Radar image contrast control |
| **8** | **Master** | Master — always enabled |
| **9** | **Gain** | Radar transceiver gain control |
| **10** | **Sea clutter** | Sea clutter compensation. Automatic adjustment can be enabled |
| **11** | **Rain clutter** | Precipitation clutter compensation (rain, snow, dense fog). Automatic adjustment can be enabled |
| **12** | **Pulse** | Pulse length control. Depending on the Radar model and the set range scale, the navigator may force-select the pulse type: long or short. **Manually changing the pulse length is not recommended** — this may cause damage to the Radar transceiver |
| **13** | **Noise suppression** | Forced noise suppression. Enables additional signal filtering in automatic mode |
| **14** | **Interference rejection** | Enables automatic suppression of asynchronous interference from the radar of an oncoming vessel |
| **15** | **Echo stretching** | Forms echoes on the screen by adding weaker target echoes. Increases the target RCS |
| **16** | **Scan refresh rate** | Radar image redraw frequency on the screen, in Hz |

```{note}
Display parameters may vary depending on navigation conditions (open sea, coastal zone, narrow channels).
```

1. **Monitor** — diagnostics of output parameters and device status during operation configuration.

![Monitor](images/Radar_Miran_5.png)

After successful connection and configuration, diagnostic information is displayed in the Monitor.

**Oscillogram** — an additional window that opens/closes by pressing a button in the **Radar** settings section. Allows visual monitoring of radar signal parameters.

![Oscillogram](images/image501.png)
