diff --git a/MOOSE b/MOOSE
new file mode 160000
index 000000000..841e611e3
--- /dev/null
+++ b/MOOSE
@@ -0,0 +1 @@
+Subproject commit 841e611e3c685eb6b223370b42042726546e806e
diff --git a/Moose Development/Moose/Core/Radio.lua b/Moose Development/Moose/Core/Radio.lua
index b83f31c8e..2a4c7f828 100644
--- a/Moose Development/Moose/Core/Radio.lua	
+++ b/Moose Development/Moose/Core/Radio.lua	
@@ -469,5 +469,12 @@ end
 -- @return #BEACON self
 function BEACON:StopAATACAN()
   if not self.Positionable then
+    self:E({"Start the beacon first before stoping it !"})
+  else
+    self.Positionable:SetCommand({
+      id = 'DeactivateBeacon', 
+        params = { 
+      } 
+    })
   end
 end