The NMEA engine of NMEAremote is based on sources and modules . As sources are delivering the messages e.g. from the boat’s network, the modules will handle the appropriate messages and assign its values to the module’s properties. In short a module is a group of relating properties. Further some properties will be calculated depending on other properties, like the true wind from apparent wind.
Some of the modules could exist multiple times like “Battery” or “Engine” . These modules also have a name to be identified by the user and an Instance ID which has to match to the instance of the NMEA messages.
Not all modules are existing per default. To add missing or remove unused modules, head to “Settings/Modules” and tap on “Edit” .
Overview of all modules and their properties:
AIS*
Property Description Targets List of received targets CD Closest Distance TCPA Time to Closest Point of Approach DCPA Distance to Closest Point of Approach
Battery*
Property Description Name Assignable name Instance ID Matching NMEA-Instance VOLT Voltage AMP Current TEMP Battery Temperature SOC State Of Charge in % SPENT Spent Capacity Rem. CAP Remaining Capacity Rem. TIME Remaining Time CAP Capacity VOLT Nominal Voltage
Sample of a Module Details View
DC Module*
Property Description Name Assignable name Instance ID Matching NMEA-Instance VOLT Voltage AMP Current PWR Power
Engine*
Property Description Name Assignable name Instance ID Matching NMEA-Instance RPM Engine Revolutions Max. RPM Maximum RPM ENGINE Engine Temperature BOOST Boost OIL PRESS Oil Pressure OIL TEMP Oil Temperature COOL PRESS Coolant Pressure FUEL PRESS Fuel Pressure FUEL Fuel Rate in l/s, l/h or gph ECO Fuel Economy in km/l , NM/l , l/100km , mpg or NM/g ECO ⌀ Average Fuel Economy FUEL USED Fuel used EGT Exhaust Gas Temperature ERT Engine Room Temperature TRIM Trim in % ALT Alternator Volts HOURS Engine Hours LOAD Engine Load TRQ Engine Torque
Environment
Property Description Sea Sea Temperature Air Air Temperature Wave* Wave Height Set* Current’s Direction Drift* Current’s Speed AOA* Angle Of Attack (Current’s direction relative to boat) BAR Barometric Pressure RH Relative Humidity AH* Absolute Humidity Dew* Dew Point Rain* Precipitation Intensity AD *Air Density Heat * Heat Index WCI *Wind Chill Index App Temp *Apparent Temperature
GPS
Property Description POS Position LAT Latitude LON Longitude ALT Altitude COG Course Over Ground SOG Speed Over Ground Max. SOG Maximum Speed Over Ground Avg. SOG Average Speed Over Ground Trip* Trip Over Ground Log* Log Over Ground HDOP* Horizontal Dilution of Precision VDOP* Vertical Dilution of Precision PDOP* Positional of Precision Sat* Satellites in View
Heading
Property Description HDG Heading (TRUE if available otherwise MAG) TRUE True Heading (could use COG) MAG Magnetic Heading DEV* Deviation VAR* Variation LEE* Leeway DRIFT* Current Drift Angle HEEL* Roll / Heel TRIM* Pitch / Trim (Fore-After) ROT* Rate Of Turn
Navigation
Property Description WP* Waypoint Position WP Name Waypoint Name ROUTE* Current Route BTW Bearing to Waypoint DTW Distance to Waypoint XTE Cross Track Error CTS* Course to Steer HE* Heading Error (HDG-CTS) Turn* Turn (COG-BTW) VMC* Velocity Made Good to Waypoint TTG Time To Go ETA* Estimated Time of Arrival
Navtex*
Property Description Messages List of received Navtex messages
Performance*
Property Description VMG Velocity Made Good Polar Polar File Polar SPD Polar Speed Polar SPD % Current Speed in % of Polar Speed Polar HEEL Polar Heel Angle (Expedition ) Polar HEEL % Current Heel Angle in % of Polar Heel Target TWA Target True Wind Angle (either Beat TWA or Run TWA) Target AWA Target Apparent Wind Angle (either Beat AWA or Run AWA) Target-TWA Difference between Target TWA and TWA (True Wind Angle) Target SPD Target Speed (either Beat SPD or Run SPD) Target SPD % Current Speed in % of Target Speed Target VMG Target Velocity Made Good in kts . (either Beat VMG or Run VMG) Target VMG Current VMG in % of Target VMG Target HEEL Target Heel Angle (either Beat or Run) Target HEEL % Current Heel Angle in % of Target Heel Track Course Over Ground of Opposite Track Beat TWA True Wind Angle for best VMG when sailing upwind Beat AWA Apparent Wind Angle for best VMG when sailing upwind Beat SPD Speed at best VMG when sailing upwind Beat VMG Best Velocity Made Good when sailing upwind Beat HDG Heading for best VMG when sailing upwind Beat Port Beat on Port Tack Beat Stb. Beat on Starboard Tack Tack Heading after tacking from Beat Run TWA True Wind Angle for best VMG when sailing downwind Run AWA Apparent Wind Angle for best VMG when sailing downwind Run SPD Speed at best VMG when sailing downwind Run VMG Best Velocity Made Good when sailing downwind Run HDG Heading for best VMG when sailing downwind Run Port Run on Port Tack Run Stb. Run on Starboard Tack Gybe Heading after gybing from Run LAY Bearing on Layline LAY Port Bearing on Port Layline LAY Stb. Bearing on Starboard Layline DTL Distance to Layline DTL Port Distance to Port Layline DTL Stb. Distance to Starboard Layline TTL Time to Layline TTL Port Time to Port Layline TTL Stb. Time to Starboard Layline Polar VMC VMC to waypoint at current heading based on polar, TWA & TWS Polar VMC % Current VMC as percentage of Polar VMC Opt. VMC Optimum VMC to current mark with a given polar and wind Opt. VMC % Current VMC as percentage of Opt. VMC Opt. VMC HDG Heading to achieve the optimum VMC to current mark Opt. VMC TWA TWA sailing the optimum VMC heading
Racing*
Property Description PIN Position of Start Pin (start line port end) RC Position of Race Committee (start Line starboard end) BSL Bearing of Start Line LSL Length of Start Line SQR Start Line Square Wind BIAS Bias of the Start Line in % BIAS Bias of the Start Line in m or ft DTL Distance To Start Line TTL Time To Start Line Burn Time To Burn (Countdown – Time To Start Line) DTL PIN Distance To Start Line Pin (Port End) BTL PIN Bearing To Start Line Pin (Port End) TTL PIN Time To Start Line Pin (Port End) DTL RCDistance To Start Line Race Committee (Starboard End) BTL RC Bearing To Start Line Race Committee (Starboard End) TTL RC Time To Start Line Race Committee (Starboard End)
Sounder
Property Description DPT Depth Min. DPT* Minimum Depth Max. Depth* Maximum Depth
Steering*
Property Description Name Assignable name Instance ID Matching NMEA-Instance Rudder Rudder Angle
Tank*
Property Description Name Assignable name Instance ID Matching NMEA-Instance CAP Capacity LVL Level VOL Volume Type Type of Tank (Fuel, Oil,….)
Thruster*
Property Description Name Assignable name Instance ID Matching NMEA-Instance Location Bow/Stern RPM Revolutions Per Minute RPM % Current RPM in % of RPM Max. RPM Max. Maximum RPM TEMP Temperature CURRENT Thruster Current in Ampere PWR Thruster Power in kW HOURS Operating Hours
Time
Property Description UTC UTC Time Local Local Time Timezone Timezone Offset Dawn* Nautical Dawn Rise* Sunrise Noon* Local Apparent Solar Noon Set* Sunset Dusk* Nautical Dusk Day* Day Length Phase* Moon Phase JD* Julian Day LMST* Local Mean Sidereal Time EOT* Equation Of Time Moment* A moment is the 1/40th of a solar hour, which is 1/12th of sunrise to sunset.
Timer*
Property Description Name Assignable name Instance ID Time Duration Start Start Time Mode Timer / Countdown
Transducer
This is a generic module which has no default properties. All transducer data received with the XDR sentence will be assigned in this module
Velocity
Property Description SPD Speed Through Water in kts, m/s, km/h, mph or s/NM (ORC) Max. SPD Maximum Speed Through Water Avg. SPD Average Speed Through Water Trip* Trip Through Water Log* Log Through Water
Vessel*
Property Description Name Vessel name MMSI MMSI (Maritime Mobile Service Identity) of the vessel Call Sign Call sign of the vessel
Wind
Property Description AWA Apparent Wind Angle AWS Apparent Wind Speed Max. AWS* Maximum Apparent Wind Speed TWA* True Wind Angle TWS* True Wind Speed Max. TWS* Maximum True Wind Speed TWD True Wind Direction (relative to north) BFT Beaufort
* only in full version available