# CLAAS GPS Pilot

Connect the **CLAAS GPS Pilot** auto-steering system to RTKdata.com for centimeter-level RTK positioning. Newer CLAAS systems with the **SAT 900** receiver (Trimble-based) support standard NTRIP connections and are **not locked to CLAAS EASY** — they accept RTCM 3.1 corrections from any provider, including RTKdata.com.

{% hint style="warning" %}
This guide applies to newer CLAAS systems with the **SAT 900 receiver** (Trimble-based). Older pre-Trimble CLAAS systems may be locked to proprietary correction services. If you have an older system, check with your CLAAS dealer to confirm third-party NTRIP compatibility.
{% endhint %}

## Key capabilities

| Feature                   | Details                                                 |
| ------------------------- | ------------------------------------------------------- |
| **Compatible receiver**   | CLAAS SAT 900 (Trimble-based)                           |
| **Compatible displays**   | CLAAS S7, S10, CEMIS 1200                               |
| **Correction mode**       | RTK NET (standard NTRIP)                                |
| **Correction format**     | RTCM 3.1 from any provider                              |
| **Connectivity**          | Built-in communication module                           |
| **RTK Bridging**          | 15 cm backup accuracy for up to 20 minutes if RTK drops |
| **Locked to CLAAS EASY?** | No — accepts third-party corrections                    |

## Requirements

* **CLAAS GPS Pilot** system with **SAT 900** receiver
* **CLAAS display:** S7, S10, or CEMIS 1200
* **RTK activation** enabled on the terminal (may require dealer activation)
* **Internet connection** via the built-in communication module (SIM card with active data plan)
* **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 activation

1. On your CLAAS display (S7, S10, or CEMIS 1200), navigate to the **GPS / GNSS settings**.
2. Confirm that **RTK** is listed as an available correction mode.
3. If RTK is not available, contact your CLAAS dealer to activate RTK on the terminal.

{% hint style="warning" %}
RTK activation may be required as a separate step on the terminal. Without activation, the RTK NET correction mode will not appear in the settings.
{% endhint %}
{% endstep %}

{% step %}

#### Verify communication module and SIM card

1. Ensure the built-in communication module has a **SIM card** with an active cellular data plan installed.
2. Check the signal strength indicator on the display to confirm cellular connectivity.
3. The SAT 900's built-in communication module handles the NTRIP connection — no external modem is needed.
   {% endstep %}

{% step %}

#### Select RTK NET correction mode

1. Navigate to **GPS Settings** > **Correction Source** (or similar path depending on display model).
2. Select **RTK NET** as the correction mode.
3. This enables the standard NTRIP client on the SAT 900 receiver.
   {% endstep %}

{% step %}

#### Enter RTKdata.com NTRIP settings

In the RTK NET configuration screen, enter the following settings:

{% 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 mountpoint list — enter the mountpoint name directly.
{% endhint %}
{% endstep %}

{% step %}

#### Connect and verify RTK status

1. Save the settings and initiate the connection.
2. Monitor the RTK status indicator on the display:

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

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

{% hint style="info" %}
If RTK drops during operation, the SAT 900's **RTK Bridging** feature maintains approximately 15 cm accuracy for up to 20 minutes using the receiver's internal algorithms. This prevents guidance interruptions during brief connectivity outages.
{% endhint %}
{% endstep %}
{% endstepper %}

## RTK Bridging

The SAT 900 receiver includes **RTK Bridging** — a built-in backup mode that activates automatically when the RTK correction stream is interrupted. RTK Bridging maintains approximately 15 cm accuracy for up to 20 minutes, allowing you to continue field operations without stopping. When the NTRIP connection restores, the system seamlessly returns to full RTK accuracy.

## Vertical reference (heights)

{% hint style="info" %}
Heights from RTKdata.com are **ellipsoidal**. For agriculture applications, this is typically sufficient since auto-steer guidance uses horizontal positioning. If you need terrain-relative heights for drainage or leveling, apply a local geoid model in your farm management software.
{% endhint %}

## Troubleshooting

| Problem                                  | Cause                            | Fix                                                                                                                |
| ---------------------------------------- | -------------------------------- | ------------------------------------------------------------------------------------------------------------------ |
| RTK NET not available as correction mode | RTK not activated on terminal    | Contact your CLAAS dealer to activate RTK on your display/terminal.                                                |
| No internet connection                   | SIM card missing or no data plan | Verify the communication module has an active SIM card with a cellular 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              | Move to an open area of the field, away from tree lines and buildings.                                             |
| Stuck on Float                           | Weak cellular signal             | Check signal strength on the display. Consider a location with better cellular coverage for initial setup.         |
| Older system does not accept RTKdata     | Pre-Trimble hardware             | Older CLAAS systems without the SAT 900 may be locked to proprietary corrections. Check with your CLAAS dealer.    |

## Tips

* **Not locked to CLAAS EASY.** The SAT 900 receiver accepts RTCM 3.1 corrections from any standard NTRIP caster, including RTKdata.com.
* **RTK Bridging is your safety net.** If you briefly lose cellular signal in the field, the 20-minute bridging window prevents guidance disruptions.
* **Cellular coverage** is the most common challenge in agricultural environments. Verify signal strength at your field locations before the season starts.
* **One SIM card, one connection.** The built-in communication module handles the NTRIP connection directly — no external modem or phone hotspot is needed.
* **Keep firmware updated.** CLAAS periodically releases updates for the SAT 900 and display terminals. Check with your dealer for the latest versions.
* **S7 vs S10 vs CEMIS 1200:** The NTRIP setup process is the same across all compatible displays. Menu paths may vary slightly between models.