I updated to 1.10 less than a week ago, and I just noticed that there was a "Magnetometer Boom." added to the science parts list. For those of you who don't know what I'm talking about, here's a picture.
I had just installed it on my flying Minmus car prototype, and yet I have no idea how to use it. More specifically, I tried to use the "Run Magnetometer Report" action group - along with the other science data groups (they were for the same key - 3) - but nothing. I then extended the antenna, but it only gave the option to retract it (aside from Autostrut and same vessel interaction).
Below are the action group options.
What exactly is this thing used for, and how? If there's a problem with the game/version, then how do I fix it? I have Version 2917 installed, by the way.