The MX420 system establishes itself as the world’s best type-approved navigator by integrating DGPS technology with Kelvin Hughes already world famous GPS marine navigation system. Use the MX420 with either autonomous GPS smart antenna MX421, or the smart DGPS receiver/antenna MX521.

A smartly designed control and display unit, the screen is brilliantly clear, with large readable characters. It allows one-button access to essential navigation data. User-friendly features include the Edit function, last-used menu memory, and automatic satellite acquisition.