# 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%2FfxLVzXCER4aldoCQsUjB%2Fbwtrainer.png?alt=media&#x26;token=f03855dc-f5a0-47cb-ae99-2a61b60b6696" 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.&#x20;

* **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.&#x20;

**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.