That's how it is, since the aircraft can't know the ground height the takeoff height is used.
On the Minis you can unlock up to 500m if you switch it from C0 class to C1 to deal with that, but that's not an option on the Neo.
No
What you can do is set up for flying with goggles then use the goggles' feature to share the screen to a phone. Give the goggles and look at the phone, knowing you may have a bit of lag/a less stable feed.
I get about 50Mbps in 4K30 and 35 in 1080p60. What Windows will say for the whole file isn't always reliable.
Underexposing is gonna make things more grainy.
Resolution is low anyway, 4K is basically no better than upscaled 1080.
This.
I reversed the protocol on the Spark battery back in the day, but yeah that was long ago and stuff will have changed. Time to break out the logic analyzer...
But they only will be once the aircraft tells the battery to do so, on the Spark the button was on the battery but here it's on...