Garmin Magnetometers EXPLAINED — GMU 11 vs 22 vs 44 (What No One Tells You)

Garmin’s GMU 11, GMU 22, and the mysterious GMU 44 magnetometers — what do they actually do, and why does nobody explain them clearly? In this video, I break down the real differences between these Garmin magnetometers. Forget the vague forum chatter and misleading advice — this is what I wish I could’ve found when I was trying to understand them. ▶ Why "airspeed" isn’t the real reason you pick a GMU 11 or 22 ▶ How CAN bus vs serial communication affects your system ▶ Why the GMU 44 exists — and why nobody talks about it ▶ What Garmin really means by “performance unknown” north of the 72nd parallel Not sponsored. Just sharing what I’ve learned the hard way. #Garmin #Avionics #GMU11 #GMU22 #GMU44 #Magnetometer #G3X #ExperimentalAircraft #IFR #AviationTips