"I use torroids today to choke emi and rfi as close to the GPS electronics as possible. Sometimes you will have them on ESC pwm leads from manufacturers as well. This helps isolate interference as a filter. Adding a capacitance can further filter out…"
"As Walter Maxwell stated in the book Reflections the I 3 current can do funny things on a coax shield going up a tower using a directional antenna. There are current baluns and voltage baluns. For a 1 to 1 I use ferrite beads or wrap the coax. The…"
"Just Downloaded 3.1.4 I will erase then align and calibrate fresh. Using the PixHawk I've found that it requires a 400 Hz refresh rate to the ESC's as a mandatory capability to be solid to control the motors with little latency :-)…"
"I used a long USB cord. Start Copter facing forward rotate 180 forward and 360 backward Go back to original Roll either way 180 deg then 360 the opposite. Go to original position Yaw rotate 90 deg and repeat above until all 90 deg yaw…"