The thing is, if your main interest is rocketry then I'd suggest using an off the shelf gps unit rather like a dog tracker and that would probably be a lot cheaper than buying all the various bit's and get you where you want to be quicker.
The thing is, if your main interest is rocketry then I'd suggest using an off the shelf gps unit rather like a dog tracker and that would probably be a lot cheaper than buying all the various bit's and get you where you want to be quicker.