Hi all i took of with the mini pro and stayed in line with it upto about 700m away and 70m high i had full bars on connection and when i stopped and started to yaw the drone around on the spot when I  got around half a turn my connection dropped to 3 bars until the drone turned around to the original direction the connection was full bar's  so the  antenna on the mini are an issue. I managed to keep going for another 600 and again when turning around to come home the bars dropped off too 3
Might be mine has a  issue or is this happening to anyone else cheers

It is normal for the connection to become worse when the drone is facing you.