Hi, @tatiana.andreeva,
I did some tests on my house’s roof. The left log is with the ground plane inside the airplane and the right log with the ground plane outside the airplane.
Both of them looks similar and the signal is good.
Maybe that cycle slips appear when the plane is moving? In the second log of my previous post (the one with more cycle slips) I remember the wind was 7m/s and in the first one (less cycle slips) 2m/s.
What do you think about that?
Thanks!