Yes thats goggles feed, nothing special.
I can't remember exactly what the goggles are called something like UFOfpv kit. Bought from BG a year ago cheap. Dvr is Eachine prodvr patched into the vid line on the goggles. Cp clover single antenna. Cam is just a TX02 with a scratched lens.
I think it's so clear because there was no interference as it was the middle of nowhere, no powerlines, fences, buildings. It was a vey bright day which always helps.