> 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/ntrip-clients-and-field-software/auterion-ntrip-app.md).

# Auterion NTRIP App Setup: Freefly & Skynode RTK

Connect Auterion drones like Freefly Astro and Inspired Flight to RTKdata via Third-Party RTK. Caster details and AUTO mountpoint for centimeter RTK.

Auterion-based drones — including the **Freefly Astro** and **Inspired Flight IF800 / IF1200** — receive RTK corrections through the **Auterion NTRIP app**, which has a **Third-Party RTK** option for connecting to a caster like RTKdata.com.

## Requirements

* Auterion-based aircraft (e.g. Freefly Astro, Inspired Flight IF800 / IF1200) with an **RTK GNSS** module
* The **Auterion NTRIP app** on the controller
* Internet on the controller
* Active RTKdata.com account with RTK 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 (pending field verification)

{% stepper %}
{% step %}

### Open the Auterion NTRIP app

In the **NTRIP app**, tap the **cogwheel (top-right) → Settings**, enable **Third-Party RTK**, then enter the connection details and credentials and tap **Apply**. (Exact field labels for host/port/mountpoint are pending on-device confirmation.)
{% endstep %}

{% step %}

### Enter your RTKdata caster details

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

* **Host:** `rtk.rtkdata.com` (IP fallback `13.56.117.10`)
* **Port:** `2101`
* **Username / Password:** From *RTK Credentials* in the dashboard (username starts with `rtk`)
* **Mountpoint (ALL CAPS):** `AUTO`
  {% endtab %}

{% tab title="Europe" %}

* **Host:** `eu.rtkdata.com` (IP fallback `3.73.41.96`)
* **Port:** `2101`
* **Username / Password:** From *RTK Credentials* in the dashboard (username starts with `rtk`)
* **Mountpoint (ALL CAPS):** `AUTO`
  {% endtab %}

{% tab title="Australia" %}

* **Host:** `aus.rtkdata.com` (IP fallback `54.206.56.130`)
* **Port:** `2101`
* **Username / Password:** From *RTK Credentials* in the dashboard (username starts with `rtk`)
* **Mountpoint (ALL CAPS):** `AUTO`
  {% endtab %}
  {% endtabs %}

{% hint style="danger" %}
RTKdata uses your GGA position to select the **nearest reference station** and stream single-baseline RTCM3 corrections — it is **not** a VRS service and sends nothing without a position. The Auterion app must forward the vehicle's position (GGA) to the caster. See [NTRIP & GGA Essentials](/integration-hub/ntrip-clients-and-field-software/ntrip-and-gga-essentials.md).
{% endhint %}
{% endstep %}

{% step %}

### Verify RTK Fix

Confirm the vehicle reaches **RTK Fixed** before relying on it for a mapping mission.
{% endstep %}
{% endstepper %}

## Vertical reference (heights)

{% hint style="info" %}
RTKdata delivers **ellipsoidal heights** (WGS 84 ellipsoid). Apply a geoid model in your processing if you need orthometric heights.
{% endhint %}

## Related Guides

* [NTRIP & GGA Essentials](/integration-hub/ntrip-clients-and-field-software/ntrip-and-gga-essentials.md): why the caster needs your GGA position and how the `AUTO` mountpoint picks the nearest reference station
* [QGroundControl (PX4)](/integration-hub/ntrip-clients-and-field-software/qgroundcontrol.md): the PX4 ground station NTRIP path, an alternative route to corrections on Auterion-based aircraft
* [Mission Planner (ArduPilot)](/integration-hub/ntrip-clients-and-field-software/mission-planner.md): the equivalent NTRIP setup for ArduPilot vehicles
* [Drones & UAVs](/integration-hub/drones-and-uavs.md): all drone platforms with an RTKdata setup guide
* [NTRIP Clients & Field Software](/integration-hub/ntrip-clients-and-field-software.md): full list of apps and field software with RTKdata setup guides


---

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