Friendly and Neutral ship contacts will NOT drop you to 1x TC, that is SH4 the game. Radio messages that come from "messages.txt" are configurable as to whether they are deemed "normal" or "important". If set to "important", they drop you to 1x TC. Radio messages that come through the mis file itself have a further setting that will allow them to pop-up on your screen. When it is early in the war, there are a LOT of "important" messages, mostly operating procedures, as to which nation is now an enemy or friend of Germany, and what your priorities are, and how to approach certain ships, and to avoid others altogether. That is the way the OM mod was set-up by lurker.