I really like the idea but its really hard to play even with the controls and the manual. For example i figured out how to tune and find a signal but after that i had no idea what to do it was not explained what the images/buttons where on the second screen (or at least i could not find it) It was telling about the different tools however i did not realy know how to use them.
I think something like this can realy benefit from a tutorial level where everything is a bit more explained. I do like the visuals of your game and the athmosphere i do think it has potential