This is the sort of game I would love to make: Something that is far more text based and story driven. I loved the idea of the helplessness of just screaming into a radio and hoping the person on the end would listen, however I didn't see the reason behind only being able to send 3-4 commands. The game also just feels like it ends randomly. Some sort of static on screen when the game ended would have helped to show that it was over.
I know you have said you'll fix a couple of things and I look forward to playing it when you do!