(In order to use the Airplane mode, Android version 4.1 before.)
(2) Measure [Signal Strength] and [Network Response Time] in real time simultaneously.
(Network Response time the time of Ping to Google DNS.)
(3) ON/OFF of 3G and Wifi can also be changed by one-touch.
(4) Structure : Airplane mode on >>> off, and recovers an Signal Wave.
(5) Attention : It is not meaningful unless an Signal Wave exists.