I am thinking to equip every car in my company with APRS tracking device from amazon. I would like ask if I have to have a HAM license for it. If yes, than for which person — I am not driving those cars, and every car has automatic tracker device, so the driver do nothing with Tx. I am asking for EU (European Union), while my cars are often going from state to state, but we are officialy in the Austria.
And if no, how can I get call signs for tracker devices?