diff --git a/src/website/scripts/Constants.js b/src/website/scripts/Constants.js
index 9f9756c..3987b6d 100644
--- a/src/website/scripts/Constants.js
+++ b/src/website/scripts/Constants.js
@@ -5,7 +5,7 @@ class Constants {
    * @type {Number}
    */
   static get CLOCK_TIME() {
-    return 500;
+    return 1000;
   }
 
   /**
@@ -17,6 +17,15 @@ class Constants {
     return [1, 1, 1, 0, 0, 0, 1, 1, 1];
   }
 
+  /**
+   * The signal used in calibration mode.
+   *
+   * @type {Number[]}
+   */
+  static get CALIBRATION_SIGNAL() {
+    return [1, 1, 0, 0];
+  }
+
   /**
    * The number of workers that should be started.
    *
diff --git a/src/website/scripts/Main.js b/src/website/scripts/Main.js
index 22f4e0b..4b1bfb8 100644
--- a/src/website/scripts/Main.js
+++ b/src/website/scripts/Main.js
@@ -67,13 +67,23 @@ function stopWorkers() {
 /**
  * Starts the calibration process by simply starting all web workers.
  */
-function startCalibration() {
+async function startCalibration() {
   Utility.setMessage("Calibration currently ongoing.");
 
   startCalibrationButton.classList.add(Constants.HIDE_CLASS);
   stopCalibrationButton.classList.remove(Constants.HIDE_CLASS);
 
-  startWorkers();
+  isTransmitting = true;
+  while (isTransmitting) {
+    for (let i = 0; i < Constants.CALIBRATION_SIGNAL.length; i++) {
+      if (!isTransmitting) {
+        stopWorkers();
+        return;
+      }
+
+      await transmitBit(Constants.CALIBRATION_SIGNAL[i]);
+    }
+  }
 }
 
 /**
@@ -85,7 +95,7 @@ function stopCalibration() {
   stopCalibrationButton.classList.add(Constants.HIDE_CLASS);
   startCalibrationButton.classList.remove(Constants.HIDE_CLASS);
 
-  stopWorkers();
+  isTransmitting = false;
 }
 
 /**