hallmark007
Captain
Flight distance : 9827923 ft
Ireland
Offline
|
Again don’t get caught down in the quagmire, your flying a drone, not sailing a ship. Contact a mod here with your case number. Dji Mindy in particular will give you excellent help.
If your interested in ships electronic compass , you will see below the variations. Not exactly same as the drone, but as you can see from what I said above poster, not really interested in your problems, so decides to take your problems down a different route.
Most electronic compasses (GPS and gyro compasses are two exceptions) are effected by magnetic deviation. They are also reliant on a power supply. Electronic compasses used for marine navigation, include:
GPS Compass - comprising 2, or preferably 3, antennas aligned symetrically fore and aft, will show the ship's heading, in either true or magnetic form, and is normally accurate to within +/- one degree on a steady heading. As with all satellite derived data, it is vulnerable to signal error and reliant on a supply of electricity.
Fluxgate Compass - uses a number of electrical coils wound on a magnetic core to detect its alignment with the magnetic meridian. It will also detect any other magnetic fields around it and is therefore as susceptible to deviation as the standard compass.
Electro-Magnetic Resistors - used in some electronic compasses to measure the earth's magnetic field. As the vessel changes direction or alignment with the magnetic meridian, resistance increases or decreases and is interpreted as heading.
Gyro Compass - usually fitted on larger vessels. It is set to point true north and does not use the earth's magnetic field. It is nomally accurate to +/- one or two degrees. Modern fibre optic gyro compasses are continuously corrected by computers, which are updated from GPS. It can take many hours for a gyro compass to operate correctly from the time it is switched on, or switched back on, after a power outage.
|
|