What should i say - the 4G mod works very fine! Data consumption after 47 min of flight @1080p record //480p stream 2gb..
Mobile operator: t-mobile with MultiSim
Disco 1.7.0 SC2 1.0.7; altitude similiar to your settings in Freeflight pro (geofence off) it works like the normal wifi connection, only with more latency; you (can) fly very low, very far.. ;-) ive not tested higher altitude than 70m - but the altitude (and range) depends only on your mobile network
Also very good for a very quick edit on your mobile phone: gopro quick! Very nice!