To use MADOCA, you need to purchase hardware and license in advance.

* DG-PRO1RWS (RTK GNSS receiver)
* VRSC (QZSS L6 receiver)
* MADOCA library license

If you do not have a MADOCA library license, we recommend using Drogger-GPS.

For information on how to use MADOCA, see the instruction manual for the MADOCA library license.

# Bugs, problem reports, requests
Please send it to bizrails@gmail.com with detailed contents and duplication procedure.
As a general rule, we do not support bug reports in Google Play reviews.