... Could you explain
Casa Rpas Cert. and that string that looks like your UAV and its features.
I won't learn if I don't ask. thanx
CASA is the Civil Aviation Safety Authority, they're Australia's equivalent of the FAA.
RPAS is Remotely Piloted Air System, which seems to be their preferred acronym for Drones/UAV/etc
The Cert was the Certification or licence that I obtained through a company here called FPV Australia. That licence covers me right up to sub-20kg class drones/UAVs/RPAS's
My signature says I'm flying phantom 2, but the company that sells it dissolves a sheet of pattern, in this case a fake "carbon fibre" pattern, onto the surface of a liquid, and then dips the shell through the pattern into the liquid, and the pattern wraps itself over the entire surface of the item.
It has an H3-3D gimbal under it, that allows the camera to stay quite still and stable whilst the Phantom moves around above it, it keeps rock solid video.
The GoPro 4 Black is the top of the line in Go Pro's - or was when I first got this set up.
The vtx is the video transmitter. It's what's mounted to the Phantom to send video back to me. It's an ImmersionRC 600mw so it's transmitting at 600 milliwatts and made by that company.
The antenna it's using is made by a company called FPVLR and the type (I believe) is a "Clover Leaf" which has 4 wire coils on it, and I really don't know much more than that about it.
That video transmission from the Phantom is being received by a 5 coil helical antenna made by the same FPVLR company.
My receiver (a 7 inch "Black Pearl" brand with 32 channels) is a "diversity" model, so it can have two antenna and use whichever one is getting the best signal at any given time. The 5 coil helical is great for long distances, but has to be kept aimed at the Phantom, so once the Phantom is in close, and I'd be dancing around in pirouettes trying to keep aimed at it, there's a FatShark brand "Spironet" antenna as well, which picks up the close in signals without having to be aimed directly at the Phantom.
You're more than welcome to ask, as 6 months ago I knew none of this stuff either, and learned it all by asking, or by just reading, here.