This is used by first taking the direction with the protractor and then turning until the compass needle points at the declination scales according to the local declination. In many parts of the world declination is so small that you do not need to take it into consideration in practical outdoor navigation. If the magnetic declination or variation is negative as shown for the Cape Town area below, clicking OK on the message alert will automatically compensate the compass bearing (29) by adding the declination value of 24 30' 36" (24.51). The Sunnto can be the protractor and do the declination automatically, if set properly. Please leave a comment, I will answer questions.\r\rAll Comments and Feedback Welcome. Scroll to Compass with Light Lock and select with Next. The angle in between magnetic and true north is your declination. The red lines are positive declinations (where your compass needle would be pointing at magnetic north, east of true north). You can also access the navigation menu and compass settings by pressing START while navigating. Turn the key until the declination indicator is the correct number of degrees east or west of 0. Compasses with Adjustable Declination - The Compass Store Scroll to Declination with Light Lock and select with Next. To adjust for this you must subtract 7 degrees to the heading to determine your true heading, i.e., if your reading is 200 degrees, you are pointed towards a heading of 193 degrees, and to travel on a bearing of 200 degrees will need to get a reading of 207 degrees on your dial. How do you use a compass to determine true north? Click to enlarge. NEW! If you have not used the compass before, you must first calibrate it. The compass software knows generally the area youre in and can correct from magnetic north with the local magnetic variation to get true north. The ground may contain magnetic minerals, like magnetite, that can have a big impact on the compass. The accurate mirror compass for serious hikers. Its numbers and arrows were simple to understand. Compasses, however, point to magnetic north a region above the Earth where the Earths magnetic fields pull. If youre in a situation where you need to navigate precisely and have a compass that lacks declination adjustment (but that has a declination scale printed inside the bezel), these are the steps: Learn the capabilities, basic functions and key features of handheld GPS receivers and get tips on how to use your new GPS unit. ADJUSTABLE DECLINATION CORRECTION (KB-14D): PICK A SUITABLE TARGET Keep both eyes open and aim with the compass so that the fixed sighting line (the one without E/W indication) meets the target (when viewing through the lens). Cammenga Lensatic Compass. The angle between magnetic north and true north is called magnetic declination. Site Map. When the needle and orienting arrow line up, the direction of travel arrow on the base will point true north. You must be logged in to your SurveyorConnect account to submit your location to the map. The steps presented below for each brand are for a magnetic declination of 15.6 West. Yeah I know. Anyone can join and everyone belongs. 1. Reactivate it with START. Suunto Ambit 3 Run User Manual Suunto Ambit2 - Using 3D compass - Setting declination value To retry the calibration, press START. Compasses, however, point to magnetic north a region above the Earth where the Earths magnetic fields pull.
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