Hi you can only do long range FPV if your in the USA , Dragon link is a good long range FPV , your need to look for a UHF transmitter to get the range you want , not sure about 30 mins flight times that will depend on weight of quad or multirotor i would look at a Hex it's more stable and can still fly if a motor goes down
Thanks for the reply.
if i reduce the range to 1 mile, can i buy a beginners racing drone like the Eachine Wizard x220s and fit it to fly as far and as long?
what would i need to buy extra and can i buy it already equipped?
You could get 1 mile out of any 220 size race quad with the proper transmitter and receiver such as the FRSky QX7 transmitter with R9M module and R9MM or Slim+ receiver. Problem is it would be out and back real fast, as the most you're going to get with any race quad is 5 or 6 minutes on a battery. So, as far? Yes. As long? No