You might be typing on channel 6 (Help) which may be the default channel and is orange text. It seems like it is now, although it wasn't when I started or maybe it didn't exist back then. Messages on Help channel go to anybody that's tuned to it, and go across all 3 countries.
You should be typing on County Channel, green text, and I think is "/ Control". Bring up your radio and look at what command is under Country.