The role of the compass is urgent

How to use the compass:

1. The compass is reset to zero.

1) Place the compass horizontally.

2) Overlap the north zero scale outside the ring with the position of the hand indicating north inside the ring, and the north arrow can be reset to zero.

2. Direction positioning.

1) Target azimuth: When measuring the target azimuth, the north of the site must be parallel to the north of the map square, and then the red line of the north arrow is aimed at the target, and the angle between the target and the north of the square is read out and the azimuth deviation angle of the map is corrected, that is, the target azimuth.

2) Directional line intersection method: use the known points of two maps to measure the target azimuth of the unknown point of the other map, and the extension lines of the azimuth angles of the two targets must meet at this unknown point.

The compass is a tool used to indicate directions, and is widely used in various directions, such as navigation, field exploration, urban road map reading, and other fields. It is also an indispensable tool for mountaineering expeditions, its basic function is to use the earth's magnetic field to indicate the direction of the north, and it must cooperate with the map to find a relative position to know where it is.

Everyone may not know much about the compass, but for veteran players who like off-road and diving, they should know it. What should I do if I get lost while diving?At this time, you can use the compass, so how to use the compass?

Align the compass baseline

Align the lubberline on your compass – align with the direction you want to go, making sure your body is in the same direction.

Determine the direction

Rotate the bezel – rotate the border on the compass – until the two triangles are aligned with each other, i.e. to 0°. When underwater, make sure that the triangle with n always has the same direction.

Correct positioning

Always aim the compass at your body and never deviate from the direction. If you accidentally deviate from course, then adjust your whole body back, not just the compass back. until your orientation is back on track.

You only need to reset the angle to 0 underwater, and you can start and find your way again. The baseline is now aligned with your destination or parallel to the shoreline you entered the water.

Avoid blind spots

Keep an eye on your surroundings from time to time. If there is a flow and a strong swim, you may be stray from the track, even if you are in the right direction.

Happy home

Return to where you started. Turn your body around until the triangular arrow pointing north is 180 degrees in reverse, then follow steps 1-4 above and let's go home happy.

Based on the missed cardinal direction and approximate distance, we find the nearest spot where deviations begin to occur, and based on this, determine the approximate location of the exit standpoint. If you are too far wrong to determine where you are standing, and you cannot return to the original path, you should look at the map to see if there is a large or prominent terrain (preferably linear) near the lost area, and if so, you should decisively abandon the original direction of travel and move closer to it, and use it to determine the place to stand.

If you don't have this condition, then continue in the same direction, and when you encounter an opportunity to determine your standing point on the way, you can quickly take a shortcut to your destination.

1. The pointing is different

When stationary, the head and tail point to the north and south, two different directions.

2. Different occasions are used

The north pole of the compass magnetic needle points to the south pole of geography, and the vertical direction of the hall can be discerned by using this feature. It is commonly used in navigation, geodesy, travel and military applications.

The compass is an indispensable tool for mountaineering, its basic function is to use the earth's magnetic field to indicate the northern direction, and it must cooperate with the map to find the relative position of the ball to know its position.

3. The principle is different

The main component of a compass is a magnetic needle mounted on an axis that can be rotated freely. The magnetic needle can remain in the tangent direction of the magnetic meridian under the action of the geomagnetic field. The north pole of the magnetic needle points to the south pole of the geography, and the direction can be discerned by using this property.

The compass uses the earth's magnetic field to indicate the northern direction, and it must be used in conjunction with the map to find the location.