> For the complete documentation index, see [llms.txt](https://manual.edgetx.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.edgetx.org/v2.9/b-and-w-radios/radio-settings/trainer.md).

# Trainer

The **Trainer** screen in Radio Settings is used to configure how the radio in Master mode will handle the signals from the radio in Slave mode. It contains the below configuration options.

<figure><img src="https://2538274303-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjAgpAXMB9RpRNV8hOqZD%2Fuploads%2FBXI615alNIIYEfYUxFAG%2Fmpmt7.png?alt=media&amp;token=03181958-a23b-494d-b40a-258e79c58bda" alt=""><figcaption><p>Trainer Ccreen in Radio Settings</p></figcaption></figure>

For each of the four main control inputs (Ail, Ele, Thr, Rud), the following options can be configured (for each row, from left to right).

**Mode -** How the radio in Master mode will handle the signals from the radio in Slave mode.

* **OFF** - Stick values from the radio in Master mode will be used - no input from the radio in Slave mode.
* **+=** Adds the stick values from both the radios in Master and Slave modes.
* **:=** Replaces the stick values from the radio in Master mode with the stick values from the radio in Slave mode. (Default)
* **Weight** - Percentage of stick travel to use of the radio in Slave mode. Use negative values to change the stick direction.
* **Source channel** - The channel from the radio in Slave mode that is mapped the control input.

**Multiplier** - This value changes the weight of all the sticks together.

**Cal (calibrate)**- Sets the center stick value of the radio in Slave mode.

{% hint style="info" %}
The trim from the radio in Master mode is usually used. Set the trims on the radio in Slave mode to their center.
{% endhint %}

{% hint style="info" %}
The radio in Master mode is the one that gets bound to the model receiver.
{% endhint %}

Pressing the **\[PAGE>]** button will take you to the **Hardware** screen.


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