I recently purchased the dji fpv drone kit (googles v2, drone and controller). For the most part its great, however, when I get to about 1600 feet, the googles begin to pixelate and I am forced to return because appears out of range. I checked the googles under "devices" > output power is showing 25 mw. I live in the usa so I was thinking it should show a higher output (700 mw). I have tried to select the output power option, however, it appears greyed out and won't allow me to select it. Not sure if this is accurate. Is there any accurate way to measure the vtx mw output from the dji fpv drone while connected to the googles? Must be a device to measure the output since I don't see anything in the menu or on screen showing that. Any insight or help on this matter would be highly appreciated.