There are two DMK Box hardware models. Model 11A-GPS includes a GPS receiver, but is otherwise identical to Model 11A. The DMK App is available in one universal version for iOS.
A yacht installer wires a DMK Box to a vessel's existing DC power source and instrument bus.
When an instrument sentence in one of the supported protocols arrives at the DMK Box, it is wrapped in a UDP packet and sent to connected devices on port 1703.
iOS devices establish a connection to a DMK Box by setting up an ad hoc Wi-Fi connection through the iOS Settings interface.
When the DMK App runs on a connected iOS device, it listens for UDP packets on port 1703.
As the DMK App receives each UDP packet, it identifies the protocol, then updates its instrument views for any sentences it knows how to parse.