Lovely looking game, with cool signal effects. The sound effects and music are great match too. Very much in keeping with the Signal theme.
Perhaps there are one too many parameters to adjust, and to be honest I didn't get a sense there was a knack to it; I felt like I was just tweaking the sliders to make the signal stregth go up without much of a pattern or system. Plus there seems to be local maxima you could fall in with no clear indication that you need to change the other sliders. That said it's all very nicely done and worked very smoothly. With the high number of nodes to fix it actually makes the timer pretty difficult.
Did you use AI to help build this game? It's not a problem with me if you did, I used a coding agent with my entry too, but the seemingly randomly generated map and the nice signal wavefront is the just sort of thing I've found the AI incredibly good at implementing quickly. The polish levels are very high (in a good way!)