> 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/drones-and-uavs/dji-dock-3-matrice-4d.md).

# DJI Dock 3 / Matrice 4D RTK Setup: FlightHub 2

Connect the **DJI Dock 3** and its **Matrice 4D / 4TD** aircraft to RTKdata.com's NTRIP correction service for centimeter-level positioning. The Matrice 4D uses the same DJI NTRIP client as the Matrice 4 Enterprise line, configured for the docked (drone-in-a-box) workflow through **DJI FlightHub 2**.

{% hint style="info" %}
For the handheld Matrice 4 Enterprise (non-docked) flow, see [DJI Matrice 4 Enterprise RTK](/integration-hub/drones-and-uavs/dji-matrice-4-enterprise-rtk.md). This page covers the **docked** Dock 3 / M4D workflow configured in **FlightHub 2**.
{% endhint %}

## Requirements

* **System:** DJI Dock 3 with a Matrice 4D / 4TD aircraft
* **Platform:** **DJI FlightHub 2** (cloud) to manage the dock and its RTK source
* **Internet:** The dock's wired/cellular connection
* **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 %}

### Open the dock's RTK settings in FlightHub 2

In **DJI FlightHub 2**, open the dock's settings and find the **RTK Service Type**. Select **Custom Network RTK** (third-party NTRIP).
{% endstep %}

{% step %}

### Enter NTRIP connection settings

Select your region and enter the corresponding server details:

{% 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` (recommended) — or `AUTO_WGS84`, `AUTO_ITRF2020`, `AUTO_ITRF2014`
  {% 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` (recommended) — or `AUTO_WGS84`, `AUTO_ITRF2020`, `AUTO_ITRF2014`
  {% 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` (recommended) — or `AUTO_WGS84`, `AUTO_ITRF2020`, `AUTO_ITRF2014`
  {% endtab %}
  {% endtabs %}

{% hint style="warning" %}
DJI requires the mountpoint in **ALL CAPS** (`AUTO`). Lowercase or local CRS names will result in **no corrections**.
{% endhint %}

{% hint style="danger" %}
The RTKdata caster uses your GGA position to select the **nearest reference station** and stream single-baseline RTCM3 corrections. RTKdata is single-baseline and location-keyed — it is **not** a VRS service. The DJI NTRIP client sends GGA automatically once the aircraft has a satellite fix. See [NTRIP & GGA Essentials](/integration-hub/ntrip-clients-and-field-software/ntrip-and-gga-essentials.md).
{% endhint %}
{% endstep %}

{% step %}

### Apply and verify Fix

Save the settings. On the next mission, confirm the aircraft reaches **RTK FIX** before the dock releases it for the flight.
{% endstep %}
{% endstepper %}

## Vertical reference (heights)

{% hint style="info" %}
RTK corrections deliver **ellipsoidal heights** (height above the WGS 84 ellipsoid), not orthometric heights. Apply a geoid model in post-processing if you need orthometric heights.
{% endhint %}

## Troubleshooting

| Problem              | Cause                             | Fix                                                                                |
| -------------------- | --------------------------------- | ---------------------------------------------------------------------------------- |
| No corrections       | Wrong RTK Service Type            | Select **Custom Network RTK** in FlightHub 2, not DJI's own network                |
| Mountpoint error     | Lowercase mountpoint              | Enter `AUTO` in ALL CAPS                                                           |
| Authentication fails | Wrong credentials                 | Re-enter username/password from the RTKdata dashboard (username starts with `rtk`) |
| Stuck on Float       | Aircraft has no satellite fix yet | Allow the aircraft to acquire satellites under open sky                            |

## Tips

* **Same DJI NTRIP client** as the Matrice 4 Enterprise — the correction behavior is identical, just configured in FlightHub 2 for the dock.
* **ALL CAPS `AUTO`** is mandatory.
* **For the handheld M4 Enterprise**, use the [DJI Matrice 4 Enterprise RTK](/integration-hub/drones-and-uavs/dji-matrice-4-enterprise-rtk.md) guide instead.

## Related Industry Solutions

* [Drones](https://rtkdata.com/drones/)
* [Utilities](https://rtkdata.com/utilities/)
* [Construction](https://rtkdata.com/construction/)


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