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.

• Accepts any combination of Raymarine SeaTalk®, NMEA 0183, and NMEA 2000 inputs
• Uses Wi-Fi to send the sentences for each protocol as UDP packet payload
• Two NMEA 0183 connections
  Separately configurable baud rates: 4800, 9600, 19200, 38400, 57600, 114200
• One Raymarine SeaTalk® connection
• One NMEA 2000 connection
• Includes an RP-SMA Wi-Fi rubber duck antenna
• FCC-approved Wi-Fi transmitter
• Requires external power DC: 5-12v

• Built-in 14-channel GPS
• Includes an external passive GPS antenna which connects via threaded SMA socket
• 0183 GPS Out; use this to provide location data to e.g. a Standard Horizon AIS radio

• iOS 4.2+
• iPad, iPhone, iPod Touch
• Apparent Wind Speed
• Apparent Wind Angle
• Boat Speed
• Depth Below Transducer

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.