GPS sensitivity is state of the terminal, the Internet
communication status, is influenced by various conditions of
the state of the GSP satellite. We specific cause is difficult.
It is not a failure of the basic functions. We perform again
correspondence as future task.
It has confirmed that the basic functions of the system
is practical by operational testing. River Information Application
has already been published in the Apple’s App Store.
We will recommend the use of the people of the citizens of
the surrounding rivers.