Thank you for your reply.
We did that in two PC's
One with pixhawk and one with APM.
Connection is ok but no control using TX.There no output from TX on Display All option mission planner.To be more specific it is some times for few seconds and…"
"Problem with Pixhawk for me is not power related but connectivity via ODG..
If Pixhawk powered via main battery there is no problem regarding power.
The problem as i say is connectivity via ODG.
The APP does not recognize the Pixhawk when connected."