First you read the compass. Then you find the correction for the heading closest to the heading the compass reads, interpolating if needed. Then you add the correction to the heading to get the corrected heading.
For example, say the compass read 37 degrees and the correction card had a +2 correction for 30 degrees and a -1 correction for 60 degrees. You would interpolate a correction at 37 degrees of about +1, and add that to 37 to get a corrected magnetic heading of 38 degrees.
angle of magnetic declination
In relation to a prismatic compass, ICE stands for "Index Correction Error." It refers to the error caused when the index line does not align perfectly with the zero mark on the compass card, leading to inaccuracies in readings. This error needs to be accounted for when taking bearings with a prismatic compass.
In my kitchen, the microwave; in my car, the generator; in the mountains, my compass; In the library, my card scanner.
the correction was wrong
to point the right direction ***correction by cw - the needle always points north.
Lensatic Compass is a kind of compass which uses a magnetized dial, a lensatic compass features a special card which helps the users in reading the directions easily. A Lensatic Compass is very useful device because it has numbers which are useful in identifying the directions of target objects. The use of Lensatic Compass involves difficulties in using it.It is important to learn how to use a lensatic compass properly prior to using it, also other materials like a map and a protractor are also needed when using the compass.
Shivalila hombalad
how they use the compass it so they won't get lost
A magnetic compass does. Though there are other types of compass that do not
Compass
Local attractions such as buildings or metal objects can affect the accuracy of a prismatic compass survey by causing magnetic interference. This interference can lead to errors in compass readings and, consequently, inaccurate survey measurements. To minimize these effects, surveyors should identify and account for local attractions during their surveys, employing techniques such as taking multiple readings and using a declination correction.
we use the pencil, protractor and a compass. we use the pencil, protractor and a compass.