Pull a wire and connect it to the tower, and if there is a transformer, connect it to transformer ground. It is not easy to install a separate ground wire. Since you are mobile, you must move frequently. and it is impossible to dig earth everywhere. Even if the project is important, others may not let you dig into it. If you don't bring precision instruments, you don't need a ground wire. Earthing piles should be buried deep in wet areas so that the earth can discharge electricity under sufficient conditions if the resistance between the distribution cabinet, generator, etc. and the grounding stake does not exceed 4 ohms. use 10 square meters of wire for a 10 kilowatt generator. Otherwise, you can also use 6 square meters of wire.
I hope this is adopted!!