====== Calibration History ======

Every time you do a [[en:rabbit-rally-2-0-competidores:rabbit-rally-primeros-pasos:calibracion|Calibration]] or accept a [[en:rabbit-rally-2-0-competidores:funciones-avanzadas:ajuste-fino|Fine-Tuning]], the Rabbit saves a copy of the calibration values. Thanks to the **Calibration History** you can go back to any of them in a few seconds. For example, if a Fine-Tuning did not go well, or if you race again with the same car and the same tyres as in another rally.

To open it, tap the 3 dots at the top right of the Calibration or Fine-Tuning screen.

==== What is saved ====

Each calibration saves the **R** value of every odometer source. The R value is the calibration factor: for the sensors, it is the metres the car travels for each pulse.

  * **Rabbit Box**: S1 and S2
  * **GPS**: KMH and MPH
  * **Rabbit Connect**: S1 and S2

<WRAP box notegreen>
Did you know...? When you calibrate, the Rabbit calibrates at the same time every source that counted pulses during the calibration section. For example, if you calibrate with the Average (S1 y S2) of a Rabbit PRO, Sensor 1, Sensor 2 and the GPS are calibrated too.
</WRAP>

==== The calibration list ====

The calibrations are listed from the most recent to the oldest:

  * **ACTUAL**: the values you are using now.
  * **CAL dd/mm hh:mm**: saved when you do a calibration.
  * **FT dd/mm hh:mm**: saved when you accept a Fine-Tuning.
  * **MANUAL dd/mm hh:mm**: a copy of the values you had before changing an R value by hand.
  * **Original**: the factory values, always at the end of the list.

The Rabbit keeps the last 20 calibrations. The oldest ones are deleted automatically.

==== Going back to a previous calibration ====

<WRAP box noteyellow>
  - Tap the calibration you want to restore.
  - Select "Use this calibration".
  - Confirm with "Yes".
</WRAP>

In the same menu you can also **Rename** the calibration, to identify it better (e.g. "Monte-Carlo snow tyres"), or **Delete** it.

==== Changing the R value by hand ====

If you know the exact R value of your car, you can enter it directly:

<WRAP box noteyellow>
  - Tap **ACTUAL**.
  - Select the source you want to change (e.g. "Set R => Rabbit Box S1").
  - Enter the new value and confirm.
</WRAP>

Before making the change, the Rabbit saves the values you had as "MANUAL", in case you need to go back.

<WRAP danger>
**WARNING! Changing the calibration affects every odometer measurement. Do it before you start the stage and never while the stage is running.**
</WRAP>