diff --git a/charon_vna/gui.py b/charon_vna/gui.py
index aaa6ebc..26433fc 100644
--- a/charon_vna/gui.py
+++ b/charon_vna/gui.py
@@ -201,13 +201,6 @@ class MainWindow(QMainWindow):
         menu_calibration = QMenu("&Calibration")
         menubar.addMenu(menu_calibration)
 
-        menu_simulation = QMenu("Si&mulation")
-        menubar.addMenu(menu_simulation)
-        action_generate_data = QAction("&Generate data", self)
-        menu_file.addAction(action_generate_data)
-        action_generate_data.triggered.connect(self.generate_sim_data)
-        action_generate_data.setShortcut(QKeySequence("Ctrl+G"))
-
         # Content
         window_layout = QVBoxLayout()
 
@@ -301,18 +294,6 @@ class MainWindow(QMainWindow):
         for plot in self.plots:
             plot.update_plot(data)
 
-    def generate_sim_data(self) -> None:
-        coords = {"frequency": self._frequency, "m": [1], "n": [1]}
-        shape = tuple(len(v) for v in coords.values())
-        data = xr.DataArray(
-            ((-1 + 2 * np.random.rand(*shape)) + 1j * (-1 + 2 * np.random.rand(*shape))) / np.sqrt(2),
-            dims=list(coords.keys()),
-            coords=coords,
-        )
-
-        for plot in self.plots:
-            plot.update_plot(data)
-
     def set_frequency(self, *, frequency: npt.ArrayLike | None = None):
         print(frequency)
         if frequency is None: