Buongiorno .... mi sono accorto che nell'app DJI GO 4 quando si vola il segnale Wi-Fi quando lo Spark si allontana diminuisce e aumenta quado mi riavvicino ..... è normale sta cosa!
Grazie.

Hello and good day DONA72. Thank you for reaching out and for the inquiry. The issue might be caused due to strong magnetic interference. When the compass has been interference, the flight mode will switch to attitude mode even if the number of satellites is high. Please stay away from large factories, high voltage lines, metal and other environments to avoid interfering with the compass. Thank you.