I have realize on my new drone the HDOP was very dificult to get less than 1. In fact, it never did. I though may was a bad day, but then I did some research in the forum here and I saw there were more cases of this.
Today I have try again, in a place where I know is good GPS signal. In fact I try first with and old drone with BackCube and HEre2 Serial, and I got 0.9 HDOP very fast.
So I have try again my new setup, OrangeCube 4.0.4, Here2 CAN, and again as the same as the first time, the HDOP was 1.9, 2.1, no less than that.
So, I have try 2 GPS on the same orange cube, one on the serial and one on the CAN, and the result was the same, the Serial got very good HDOP, and the CAN wont.
May be im missing something the the GPS CAN setup?