...
I also note that the vertical velocities are quite small and don't vary, indicating both that the set-up crew did a great job of leveling the towers and that a turbine wake is not visible (expected since the winds were generally from the wrong direction).
HOWEVER, the Gill at 12 s12 is bad. When I rserial to it, I get binary gibberish. I have now checked (using minicom) that this isn't a baud rate issue. Perhaps a 422 issue?. I've also verified that "tp4" shows the same settings (120ohm termination, normal slew) as for s13, which is working. I conclude that this is not a problem with DSM settings, but a cabling issue or something in the Gill itself.