> For the complete documentation index, see [llms.txt](https://docs.rtkdata.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rtkdata.com/integration-hub/machine-control/leica-icon-igd4.md).

# Leica iCON iGD4

Connect a **Leica iCON iGD4** machine control system to RTKdata.com for centimeter-level RTK positioning on excavators, dozers, and graders. The NTRIP connection is configured on the **receiver** (iCON gps 60/80 or iCG70/160), not on the iGD4 display itself.

{% hint style="danger" %}
NTRIP settings are configured on the **GNSS receiver**, not on the iGD4 display. The receiver (iCON gps 60/80 or iCG70/160) has the built-in 3G/4G modem and NTRIP client. The display only shows the resulting position and RTK status.
{% endhint %}

## Key capabilities

| Feature                   | Details                                 |
| ------------------------- | --------------------------------------- |
| **Compatible displays**   | Leica iCON iGD4, iGD4SP                 |
| **Compatible receivers**  | iCON gps 60, iCON gps 80, iCG70, iCG160 |
| **NTRIP configured on**   | Receiver (not display)                  |
| **Receiver connectivity** | Built-in 3G/4G modem with SIM slot      |
| **RTK license**           | Required on the receiver                |
| **Machine types**         | Excavators, dozers, graders             |
| **Correction format**     | RTCM 3.x via NTRIP                      |

## Requirements

* **Leica iCON iGD4 or iGD4SP** display
* **GNSS receiver:** iCON gps 60, iCON gps 80, iCG70, or iCG160 with **RTK license** activated
* **SIM card** with active data plan installed in the receiver's built-in modem
* **RTKdata account:** Active subscription with NTRIP credentials

{% hint style="info" %}
Don't have an RTKdata.com account yet? [Start 30-day Free Trial](https://rtkdata.com/try-rtk-corrections-free-for-30-days/) or [View Pricing](https://rtkdata.com/pricing/)
{% endhint %}

## Step-by-step setup

{% stepper %}
{% step %}

### Verify RTK license on the receiver

1. Check that the GNSS receiver (iCON gps 60/80 or iCG70/160) has an active **RTK license**.
2. The RTK license is tied to the receiver, not the display.
3. If RTK is not licensed, contact your Leica Geosystems dealer to activate it.

{% hint style="warning" %}
Without an RTK license on the receiver, NTRIP connections will not be established even if all settings are entered correctly.
{% endhint %}
{% endstep %}

{% step %}

### Insert SIM card into the receiver

1. Locate the SIM card slot on the GNSS receiver.
2. Insert a SIM card with an active cellular data plan.
3. Power on the receiver and verify cellular signal strength via the receiver's status indicators or the iGD4 display.
   {% endstep %}

{% step %}

### Access the receiver's NTRIP configuration

1. Access the receiver's configuration interface. Depending on the receiver model, this may be via:
   * The **receiver's web interface** (connect via Wi-Fi or Ethernet and open the configuration page in a browser)
   * The **Leica iCON field software** on the iGD4 display under the receiver/corrections settings
2. Navigate to the **NTRIP** or **Corrections** configuration section.
   {% endstep %}

{% step %}

### Enter RTKdata.com NTRIP settings

Fill in the NTRIP connection fields on the receiver:

{% tabs %}
{% tab title="North America" %}

* **Host (domain):** `rtk.rtkdata.com`
* **Host (IP fallback):** `13.56.117.10`
* **Port:** `2101`
* **Username / Password:** From *RTK Credentials* in the internal dashboard (not website login)
* **Mountpoint (ALL CAPS):** `AUTO`
  {% endtab %}

{% tab title="Europe" %}

* **Host (domain):** `eu.rtkdata.com`
* **Host (IP fallback):** `3.73.41.96`
* **Port:** `2101`
* **Username / Password:** From *RTK Credentials* in the internal dashboard (not website login)
* **Mountpoint (ALL CAPS):** `AUTO`
  {% endtab %}

{% tab title="Australia" %}

* **Host (domain):** `aus.rtkdata.com`
* **Host (IP fallback):** `54.206.56.130`
* **Port:** `2101`
* **Username / Password:** From *RTK Credentials* in the internal dashboard (not website login)
* **Mountpoint (ALL CAPS):** `AUTO`
  {% endtab %}
  {% endtabs %}

{% hint style="warning" %}
Type `AUTO` manually in ALL CAPS. Do not browse the source table — enter the mountpoint name directly.
{% endhint %}
{% endstep %}

{% step %}

### Connect and verify RTK status

1. Save the settings and initiate the NTRIP connection on the receiver.
2. Monitor the RTK status on the iGD4 display:

| Status               | Meaning                                                                   |
| -------------------- | ------------------------------------------------------------------------- |
| **Autonomous / GPS** | Basic satellite fix. No corrections applied.                              |
| **DGPS / Float**     | Correction data arriving and being processed.                             |
| **RTK Fixed**        | Centimeter-level accuracy achieved. Ready for machine control operations. |

3. Convergence to RTK Fixed typically takes **30–90 seconds** with clear sky visibility.

{% hint style="info" %}
For machine control operations, always wait for **RTK Fixed** before beginning grading, excavation, or dozing. Working in Float mode may result in elevation errors that affect cut/fill accuracy.
{% endhint %}
{% endstep %}
{% endstepper %}

## Vertical reference (heights)

{% hint style="info" %}
RTK corrections deliver **ellipsoidal heights** (height above the WGS 84 ellipsoid), not orthometric heights. For machine control, you typically work with a local site calibration or localization. Configure the appropriate vertical datum in your Leica iCON project settings.
{% endhint %}

## Troubleshooting

| Problem                                   | Cause                               | Fix                                                                                                                |
| ----------------------------------------- | ----------------------------------- | ------------------------------------------------------------------------------------------------------------------ |
| Cannot find NTRIP settings on the display | NTRIP is configured on the receiver | Access the receiver's configuration interface (web UI or via iCON field software), not the display settings.       |
| RTK license error                         | No RTK license on receiver          | Contact your Leica dealer to activate the RTK license on the specific receiver unit.                               |
| No internet connection                    | SIM card missing or inactive        | Verify the SIM card is properly inserted in the receiver and has an active data plan.                              |
| Connection fails                          | Wrong host or port                  | Double-check the host address for your region and confirm port is `2101`.                                          |
| Authentication error                      | Wrong credentials                   | Use the username and password from your RTKdata dashboard, not your website login. Credentials are case-sensitive. |
| Stuck on Float                            | Poor sky visibility                 | Ensure the GNSS antenna is mounted high and clear on the machine, away from obstructions like booms and cabs.      |
| Stuck on Float                            | Weak cellular signal                | Check the receiver's signal strength. Construction sites in urban canyons or remote areas may have poor coverage.  |
| Mountpoint error                          | Wrong capitalization                | Type `AUTO` in ALL CAPS.                                                                                           |

## Tips

* **Configure the receiver, not the display.** This is the most important thing to remember with Leica iCON machine control. The receiver owns the NTRIP connection and RTK license.
* **The receiver's built-in modem** eliminates the need for external cellular devices. Just insert a SIM card and configure NTRIP.
* **iCON gps 80 and iCG160** are the higher-end receivers with faster convergence and better multipath rejection — ideal for demanding machine control environments.
* **Site calibration is critical.** Perform a site localization to align RTK coordinates with your design surface before starting machine control work.
* **Multiple machines on one site** can each use their own RTKdata connection. Each receiver needs its own SIM card and NTRIP credentials.
* **Keep receiver firmware updated** via Leica myWorld for the latest constellation support and NTRIP client improvements.
* **iGD4 vs iGD4SP:** Both displays work with the same receivers and NTRIP setup. The iGD4SP adds additional machine control features but does not change the RTK configuration process.


---

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