# RC Transmitter setup

{% hint style="info" %}
**This part of the tutorial is only necessary, if you don't have predefined Model already loaded in your transmitter.**

If you don't know, whether you have already set up Transmitter, please consult this topic with your drone provider.
{% endhint %}

This is a quick start up guide to setup RC Transmitter for our Patron FPV.

Transmitter model: **Jumper T20 Gemini**

In the attached picture are highlighted sticks and buttons with numbers, which are mentioned in this tutorial.

<figure><img src="/files/N8f8h7TY7UUnEJLqWIfm" alt=""><figcaption><p>Transmitter setup controls</p></figcaption></figure>

## RC Transmitter Model setup

Model file contains configuration data for transmitter, e.g. button and control sticks bindings to specified channels, logical functions etc.

{% stepper %}
{% step %}
**Check firmware version and update it (if needed)**

* Provided model in Step 2 is tested on firmware version 2.10 and newer.
* Please refer to EdgeTX manual to check firmware version:\
  <https://manual.edgetx.org/bw-radios/radio-settings/version>
* In case you have older firmware, you need to update your firmware in Transmitter. You can find tutorial here:\
  <https://manual.edgetx.org/installing-and-updating-edgetx>
  {% endstep %}

{% step %}
**Download provided model**

{% file src="/files/VAM8LPAOxxEr0utPAEZU" %}
{% endstep %}

{% step %}
**Copy model into transmitter**

* Turn on RC transmitter (T20 Gemini, or other compatible RC)
* Connect PC and RC transmitter via USB-C data cable.
* List of option will be shown on RC display, use roller **( 2 )** to select **`USB Storage(SD)`**. Confirm by pressing roller **( 2 )**.
* Now, internal storage of RC transmitter should be visible in Files/File Explorer. Copy downloaded model to folder **`MODELS`** in RC transmitter internal storage.

{% hint style="warning" %}
When uploading new `modelXX.yml` file, ensure that the `XX` numbers are sequential and in the order.\
Files must be numbered consecutively (e.g., `model00.yaml`, `model01.yaml`, `model02.yaml`, …) for the system to work properly.\
File name has to be always in format `modelXX.yml` , where XX represents order number, in which models are displayed in Transmitter menu.
{% endhint %}

* After successful model copy, unplug RC transmitter and it turn off.
* Always turn on your RC transmitter first, than select correct model by shortly pressing **( 1 )** button and selecting/confirming model with roller **( 2 ).**
  {% endstep %}
  {% endstepper %}

{% hint style="info" %}
Current RC Transmitter which is being used is set to **Mode 2**. This means, that sticks controls are following:

* Left stick - **Throttle** and **yaw**
* Right stick - **Pitch** and **roll**
  {% endhint %}

### Changing Mode (optional)

This section is a quick guide to set Flight stick configuration (also known as Mode). This section is optional and is not recommended, if you are new to flying.

{% hint style="info" %}
We are using **`Mode 2`** in our whole tutorial, which we also recommend. This is set as default in RC Transmitters provided by us.

**`Mode 2`** sticks controls are following:

* Left stick - **Throttle** and **yaw**
* Right stick - **Pitch** and **roll**
  {% endhint %}

1. Hold down menu butto&#x6E;**( 1 )** until menu opens up.
2. Move to the third page of menu by pressing a button under the menu button twice.
3. Scroll down using rolle&#x72;**( 2 )** until you find a setting called `Mode`. You can see currently selected mode under the Mode setting (by default number 2)
4. Select the Mode number by pressing the roller. Then rotate the roller to desired number and confirm by pressing the roller.

***

## Connecting FPV and Transmitter

Analog FPVs are using Express LRS radio control link with OpenTX/EdgeTX firmware. This enables binding of Transmitter and the drone with pairing phrases.

{% hint style="warning" %}
**Always set up one Transmitter at a time!**
{% endhint %}

1. Turn on your Transmitter. Wait until your transmitter starts.
2. Hold down menu butto&#x6E;**( 1 )** to open menu.
3. In the first tab select **`ExpressLRS`** by pressing rolle&#x72;**( 2 )**.

<figure><img src="/files/7Pgac1NOviNHuXD3qcaa" alt="" width="375"><figcaption></figcaption></figure>

4. Scroll down using rolle&#x72;**( 2 )** and select **`WiFi Connectivity`** .

<figure><img src="/files/fbEyWGRY5lSXRs9NRpHN" alt="" width="375"><figcaption></figcaption></figure>

5. Now select **`Enable WiFi`** option. This will start WiFi of your transmitter.

<figure><img src="/files/o845BdaJvg8cRHEJwXTM" alt="" width="375"><figcaption></figcaption></figure>

6. Running WiFi can be shown by following window:

<figure><img src="/files/y47Oidu58BcN0SQI4RJj" alt="" width="375"><figcaption></figcaption></figure>

7. Connect to WiFi named **`ExpressLRS TX`** by using your PC or mobile phone. If you are using a mobile phone, after successful connection a window will pop up on address 10.0.0.1. If you are using PC, use your browser to open web page called `10.0.0.1` .
8. Go to tab OPTIONS and type in your binding phrase. Default binding phrase to your FPV is located on top of the drone above the frontal camera. (e.g. `FPV02`). **Always type in the phrase in lower case!** For example, phrase `FPV02` type in as `fpv02`.

<figure><img src="/files/fezmpE4oNM83R5r1pMIV" alt=""><figcaption><p>Binding phrase window</p></figcaption></figure>

9. Click on **`SAVE`** button below. Wait a few seconds until new pairing phrase is uploaded to Transmitter and following window will pop up:

<figure><img src="/files/hTc7R4u0LMAqqgbkJoid" alt="" width="224"><figcaption></figcaption></figure>

10. Click **`REBOOT`** button. This action will automatically turn off Transmitter WiFi.
11. Restart your Transmitter by holding **Power Button.** Your pairing process is finished.


---

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