Or SOS

The internationally used Morse code distress signal SOS. If it is abbreviated to the hypothetical initials of the following word, it becomes another word. Actually, S.O.S doesn't mean saving our souls, saving our boat, stopping other signals, being sure to sink, or any other phrases.

The reason why S.O.S was selected as an international distress signal by Radio International Apartment in 1908 is because of the combination of these letters, three points, three strokes and three points ( .......................................................................................................................

S.O.S. is an acronym with incorrect origin. The earliest record is related to the sinking of Titanic cruise ship 19 12, which may explain why the word S.O.S. is widely circulated and has a long history.

Before 1908, the distress signal on the high seas was composed of three letters. Similarly, C.Q.D, these three letters themselves were meaningless. Although many people use it to mean "Ouickly, Danger" (meaning "Come on, danger"). The usage of C.Q.D continued until 1908, which is the ancient way that the original distress signal of Titanic was sent out. It was not until the ship was about to sink that the operator sent out this new distress signal.

What are the methods of distress signal?

There are mainly fire, light, color, reflector, placed items, sound and other distress signals.

Fire signal: light three fires at equal distance, mainly bright at night, and put some grass smoke during the day.

Lighting signal: Flashlight or lamp flashes 6 times per minute, repeatedly.

Color signal: wear colorful clothes or hats and stand in conspicuous places to attract people's attention; Or stand on high and hang bright clothes or quilts.

Reflector signal: the signal reflected by sunlight can attract people's attention, generally 6 times per minute, and it is repeatedly reflected. Materials include glass sheet, can skin, glass sheet, reflector, etc.

Item signal: use branches, stones, clothes, etc. Put the "SOS" signal as loud as possible. You can write "SOS" directly in the snow.

Sound signal: if the distance is not large, you can call for help by sound; Or send out a distress signal with percussion.

What is the distress signal? How to send a distress signal?

SOS three short three long three short S.O.S is an international Morse code distress signal, not an abbreviation of any word. In view of the frequent maritime accidents at that time, it was often impossible to send out distress signals in time and organize rescue as quickly as possible, resulting in heavy casualties and property losses. 1908, the international radiotelegraph convention officially identified it as an international universal distress signal. The combination of these three letters has no practical significance, just because its code (three dots, three dashes and then three dots) is most easily sent by the sender and recognized by the receiver in the telegram.

What are the international emergency distress signals?

Igniting three flames is an international distress signal. The most ideal thing is to arrange the fires in a triangle with equal intervals between each pile, which is also convenient for lighting. If the fuel is low or you are seriously injured, or you are too weak because of hunger, you can't make three fires, so it is ok to light one just because you are poor.

Don't let all the signal kindling burn all day, but always be ready to keep the fuel dry. Once a plane passes by, light up for help as soon as possible. The fuel of fire should burn easily and burn quickly after ignition, because some opportunities are fleeting. Birch bark is an ideal fuel. You can use gasoline, but don't pour it on the fire. Make a wick with some cloth, soak it in gasoline, then put it on the fuel pile, move the gasoline tank to a safe place and light it. When the fire is lit, it goes out. Before adding gasoline, make sure to add it to the fuel without sparks or embers.

What are the distress signals?

Emergency distress signal

What is an international distress signal?

SOS is an international distress signal. In daily life, SOS is usually understood as "saving our ship" and "saving our soul".

However, it didn't mean anything when the specification was made, just because Morse code is all-dot and all-horizontal, which is convenient for recording.

SOS was first adopted in April of 1905 and 1, and was stipulated by Germany in the radio management regulations. It became an international standard on 1906 1 1.3 (CQD distress signal was also used before, but it did not become a standard). It was widely used after 1 908 July1. The reason why the new distress signal was formulated as SOS was because the anti-jamming technology at that time was very poor. The commonly used CQD signal transmission code is long, and the symbols of the codes are inconsistent, while S and O are rare continuous codes in Morse code, which is more convenient for operators to use. And SOS will become an easy-to-remember and practical way to ask for help in the future.

With the development of modern radio communication technology, ships and spacecraft use Morse code for communication less and less. So SOS has gradually stopped except amateur radio and changed to GMDSS (International Maritime Satellite Electronic Communication Device).

Universal remote expression:

The first way to help: make a sound, three short three long three short (... _ _ _ _ _ _) Morse code.

Help method 2: lighting, such as flashlight, three short, three long and three short (switching lights)

In an emergency, there are several ways to send out a distress signal.

When you are trapped or in danger and have no communication tools, you should send a simple distress signal in time.

1. Sound distress signal: When you are in danger, you can send a distress signal to the surrounding area by shouting, whistling or slamming the washbasin.

2. Light distress signal: In case of danger, you can use a flashlight and a mirror to reflect sunlight. Flashes 6 times per minute, pauses 1 minute, repeats the same signal, and sends a distress signal to the front.

3. Throw soft objects for distress signal: When a tall building is in distress, throw soft objects, such as pillows and empty plastic bottles, to send distress signals to the ground.

4, fireworks distress signal: When you are in danger in the wild, you can burn fresh branches, grass and other plants to emit smoke during the day; At night, dry wood can be lit, giving off bright and shining red fire and sending out distress signals to the surrounding area.

5. Field distress signal: pile up "SOS" or other distress words with branches, stones or clothes in the open space, each word is at least 6 meters long, and send a distress signal to the sky.

Another flag sent a distress signal:

What methods can be used to send out distress signals in the wild?

I. Signal type

Send out different distress signals according to their own situation and surrounding environmental conditions. Generally speaking, repeating the action three times symbolizes asking for help.

The types of signals are:

[pyrotechnic signal]

Firelight is a very effective communication signal. In case of distress, according to your own situation: in order to ensure its reliability, you can put some moss, tender branches and rubber on the fire during the day to make it produce thick smoke; Put some dry wood at night to make the fire flourish.

Igniting three flames is an international distress signal. The most ideal thing is to arrange the fires in a triangle with equal intervals between each pile, which is also convenient for lighting. If the fuel is low or you are seriously injured, or you are too weak because of hunger, you can't make three fires, so it is ok to light one just because you are poor.

It is impossible to let all the signal kindling burn all day, but always be ready to keep the fuel dry. Once any plane passes by, it should be lit for help as soon as possible.

The fuel of fire should burn easily and burn quickly after ignition, because some opportunities are fleeting. Birch bark is an ideal fuel.

You can use gasoline, but don't pour it on the fire. Make a wick with some cloth, soak it in gasoline, then put it on the fuel pile, move the gasoline tank to a safe place and light it. When the fire is lit, it goes out. Before adding gasoline, make sure to add it to the fuel without sparks or embers.

During the day, smoke is a good locator, so add smoke-emitting substances to the fire. After the smoke is lifted off, it is in sharp contrast with the surrounding environment and is easy to be noticed.

Bright smoke stands out at night or in the dark green jungle. New green grass, leaves, mosses and ferns all produce thick smoke. In fact, anything that is wet will produce smoke. Wet mats and cushions can be smoked for a long time, and flying insects are difficult to get close to people.

Black smoke is most striking in snow or desert, and both rubber and gasoline produce black smoke.

If restricted by gas conditions, the smoke can only float near the surface, which can increase the fire, so that the heated air flow will rise more fiercely and bring the smoke to a considerable height.

[ground-to-air signal]

The letters listed below are international emergency signals. Filling in can help you remember the main signals. The single "1" is the most important and the easiest to do. The size is that each signal is10m long and 3m wide, and the interval between each signal is 3m.

[body signal]

When the search plane approaches, body signals can be used to express the meaning of the victims.

[semaphore signal]

A flag or a piece of brightly colored cloth is tied to a stick. When holding the stick, the left side is lengthened and the right side is shortened to increase the motion range and make a figure-eight movement.

If the two sides are close, there is no need to do the "8" movement. Simple strokes will do, with long strokes on the left and short strokes on the right. The former should take a little longer than the latter.

[sound signal]

If you are close, you can shout loudly, three short and three long, repeatedly short; Repeat after interval 1 minute.

[reflected signal]

Signal light can be emitted by sunlight and mirrors. Any bright material can be used, such as a can cover, glass, and a piece of platinum. Of course, a mirror is more ideal. Continuous reflection will regularly produce a long line and a point, which is a Morse code. Even if you don't understand Morse code, casual reflection may attract attention. Anyway, you should at least master the SOS code.

Even if the distance is quite far, you can detect a reflected light signal, and even you don't know the location of the target you want to touch, so it is worth exploring. Its approach is only a little effort. Pay attention to the sky around you. If an airplane approaches, it will quickly reflect the signal light. This kind of light may dazzle rescuers, so once you are sure that you have been discovered, you should stop reflecting immediately.

Second, how to use signals for help?

There are many ways to rescue:

[ignition]

Ignite three fires in succession, and the optimal distance between them is equal. You can burn cigarettes during the day. Put something that produces smoke on the fire, such as grass, 6 times a minute. Flammable at night.

[cry for help]

Send a distress signal not far away. You can shout loudly, or you can use other objects to make sounds, such as hitting trees with axes and sticks.

[using a mirror]

Reflecting signals by returning light is an effective way. Available reflective items, such as metal signal mirrors, canned skins, glass plates, glasses, reflectors, etc.

......

What are the common distress signals in the world and how to send them?

The letter "FILL" is an international emergency signal. The single stick "1" is the most important and effective.

A simple one. The size is that each signal is10m long and 3m wide, and the interval between each signal is 3m. [Body Signal] When searching for an airplane,

When you are nearby, you can use body signals to express the meaning of people in distress.

What was the past?

SOS is an international emergency distress signal. In fact, in radio communication, the signal for "emergency help" is three short.

Three long and three short, because in Moss code, three short stands for S and three long stands for O, so the emergency distress signal is called SOS for short.

Because this signal is simple and clear, it is adopted by all countries in the world.