Optional, to give this instrument a name for easy identification.
Two sensor types can be simulated: True heading and Magnetic heading.
The value from the True heading sensor goes straight into the HDT sentence.
The value from the Magnetic sensor goes to the HDM sentence, but not before being compensated with magnetic variation and deviation.
The value for the True heading sensor can optionally be taken from a selected active GPS instrument. To achieve this, check the "Copy from GPS course" checkbox. A dropdown control will open showing all available active GPS instruments. Select the one required and the true heading will be taken from the course indicated by the GPS instrument. This can come in very handy if the GPS in question is sailing an automatic route.
The magnetic deviation Easterly or Westerly.
This is a paramater that corrects the Magnetic Heading.
Since this is normally a fairly constant value for a given sea area, you have the option of copying it from the General Settings so you do not need to set it again for each new intance of a weather instrument.
The magnetic compass deviation, East or West.
This parameter corrects the Magnetic Heading.
To set the NMEA0183 sentence identifier. Set this to either
Select the NMEA 0183 sentences you want to simulate and to be sent to the output port
The Rate of Turn in degrees per minute. The value is reflected in the ROT sentence.
The value be adjusted by the up/down arrow buttons of the control, but also by using the main Rudder Control. When using the main Rudder Control, the the ROT value is calculated by dividing 708 by the maximum rudder setting and multipled by the value in the Rudder Control.
The value 708 is used for consistency with the maximum ROT value possible in AIS message 1.
Please notice you can change the range for the main Rudder Control in the General Settings. It is set to 30 degrees by default.
Check this if you want a checksum added to each sentence