diff --git a/projects/remote_transceiver/diagrams/transmit_global_path_sequence.puml b/projects/remote_transceiver/diagrams/transmit_global_path_sequence.puml
index b4ee88e..6618840 100644
--- a/projects/remote_transceiver/diagrams/transmit_global_path_sequence.puml
+++ b/projects/remote_transceiver/diagrams/transmit_global_path_sequence.puml
@@ -18,7 +18,11 @@ end
 loop For Each Waypoint Message
     server --> handler ++ : Transmit Waypoints
     <- handler -- : POST Waypoints to Iridium
-    deactivate server
+    note over handler, server
+        To prevent out of order transmissions, POSTING
+        to Iridium should be a blocking operation.
+    end note
 end
+deactivate server
 
 @enduml