"Update: More testing today revealed that any waypoint after the land command appears to be ignored. When the land command reduces the throttle to idle, the SkySurfer pitches up slightly and then back down for the landing.  I had better luck…"

"I was able to successfully auto land several times yesterday.  My setup is SkySurfer with APM 2.5, firmware 2.72, airspeed sensor, MediaTek GPS, Mission Planner 1.2.48.  The mission planner waypoint setup I am using is much the same as…"

"It is recommended to NOT have Input Power connected with USB connected. The NEW WIKI mentions this. While calibrating your radio to APM, the servos should not be connected - they are not needed. Only calibrate, do not drive servos. The USB will…"

"I now tested. I connected two seperate BECs to same battery. Removed jumper. Put the output lead of one bec to output side, put the output lead of the other bec to input side. what happens is that, when I connect my apm to pc via usb, servos tries…"

"Yes"

"Is using two bec from the same battery ok??"

"I do not know the EZUHF stuff, but equipment connected to the inputs 1-8 and connectors A0-A11 should not draw more than 500mA in sum from the APM if it is powered by a ESC or BEC connected to the outputs 1-8 and JP1 is present. However you can put…"

"@Derin, The problem you have with powering the APM2.0 inputs and outputs from the same BEC is that the servo current draw on the BEC, when they are in operation, can momentarily drag down the BEC output during large servo swings and there is…"

"I dont mind wiring. Connecting both input and output to same bec has any negative effect on board/sensors,working of apm,.....?"

"Its a fixed wing airplane (elevon setup)"

"Fixed wing airplane, multirotor, or rover application? (I should have asked previously) -=Doug"

"Your measurements are correct and to be expected. There is a voltage drop across the diode. This is why the specification says "...ideal voltage is 5.37 V..." to compensate for the diode drop. Your ESC/BEC needs to have more output…"

"Thank you very much for your reply. But on my plane, if I put jp1 on and supply apm from output side with a bec, I measure voltage on input side it's 4.6 volts when bec output is 5.1 volts. If i remove jumper and dual supply output and input…"

"Ezuhf rx 8ch diversity"

"What EZUHF product are you referring to? -=Doug"

"It should work but that is what JP1 provides. That scheme would be redundant. There would be no issue of a ground loop because the APM lumps all the returns/Earths/grounds together on the pcb. Only the +5V input and Vcc are separated. Look over my…"