Both devices are turned on at the separation from a rocket.
The parachute of Mother Device is expanded.
The Gas Injection Unit are turned on and start to inject helium gas into the Child Balloon Device.
After the gas injection, Separation Unit is turned on and Child Device is separated from Mother Device.
Child Device decends far slower than Mother Device, measures its own position with GPS receiver, and send the results of mesurement Mother Device with radio communication. Mother Device sends these data and its own positioning data by GPS to Base Station.
After landing of both devices, team members collects them.
