I am just ready this manual for H520 and some things I would like to comment.
CALIBRATIONS
Watching all the talks during past months prior to the H520 release I was in impression that compass calibration will be actually easier, no longer need for rotating aircraft. But in this manual I see not only rotating is needed, but also they state that that you should do this if your take of position is changed for only 5 miles.
And not only compass calibration is now more complicated, but I see accelerometer calibration is now more complicated than on H480. Now you need to rorate aircraft for accelerometer as well.
Instead of creating this to be easier, it is more complicated.
OBS
What does it meanse when switch is position center, that OBS is in stanby ? What is difference between off and standby
ST16S
So is this remote now with 2 or 3 antennas ? in manual it is shown with two antennas