What are the outdoor communication equipment

Summary: Crossing mountains is the dream of every donkey. However, those scenic places are often more remote, in the communication will be very limited, and cell phone equipment is often not able to meet the needs of communication, and in the deep mountains and dense forests, get lost is common, so the use of outdoor communication and positioning equipment is very important. So what are the outdoor communication devices? Cell phones, walkie-talkies, compasses, compasses, GPS, survival whistles and so on are very common communication and positioning equipment, the following is a look at the introduction. Think about yourself in the donkey journey, hone yourself in sweat, and intoxicate yourself in the beautiful scenery ...... The significance of the donkey journey lies not in the end, but on the road.

In recent years, more and more friends to join the donkey army, with equipment, backpack, braced with hiking poles, to explore that little-known holy land. However, that wonderful holy land is generally off the beaten track and very primitive areas. Inexperienced donkeys who are not adequately prepared, who do not carefully study the weather forecast and other safety conditions at their destination, and who do not take into account the possible effects of extreme weather, are at high risk of a safety incident. And in recent years, donkeys have been lost frequently and increasing year by year, donkeys travel safety issues back to the hot spot.

What kind of communication equipment should be equipped when traveling outdoors? When you encounter an emergency outdoors, how do you call for help? How to contact the outside world to do not lose contact? I visited a few senior donkeys and domestic well-known field rescue organizations, to understand a few very practical outdoor communication skills:

1, cell phone installed GPS positioning program

Mobile phones are the most common communication devices. In the case of smooth signals, in critical situations, donkeys and friends can immediately take out their cell phones through the phone, text messages and communication software and other forms of relatives and friends for help, but in the wilderness, there is no clear landmarks in the place, how to tell each other your specific location? Communication software real-time location sharing, GPS positioning software can help you.

But in the wild outdoors, cell phones often have no signal to use, and at this time the need for emergency help, you can dial "112" emergency call, even if the phone in the absence of a signal, the power is extremely weak, and even without inserting a SIM card in the case of any brand of cell phone in any location can be dialed.

2, the use of walkie-talkies, remember some of the listening frequency

Talkie-talkies are essential communication tools for organizers, when the team has more people, it is best to have a walkie-talkie.

The walkie-talkie not only allows you to keep communication in the team, know the overall situation of the team at any time, but also is an important tool for you to save your life in times of crisis. Old donkey advice: 1, for friends who take a long route, prepare more than one battery, can always play a role in the critical moment; 2, a penny a penny, cheap walkie-talkies can solve general problems in general moments, high-end walkie-talkies can be in critical moments as well as extreme environments to save your life; 3, in the call for help or an important call, to try to avoid the cover; try to reach the open area, try to stand in the high place; 4, Familiarize yourself with the following listening frequency, you can really use it when it matters:

438.500MHZ, the public frequency of Beijing Radio Sport Association, the invincible frequency, there are about 1-2 million people in Beijing on average every day at the same time in the listening, no matter where you are in Beijing, as long as you have the need, and try to call, there is always someone who will be able to copy to you and be happy to help you, remember, when asking for help, always say help first;

What is the most important thing you can do when you need help?

434.750MHZ, Beijing Radio Sports Association frequency, invincible frequency, Blue Sky Rescue Team listening frequency, Changping Changhan Lian radio club listening frequency, if you need help in the north, this frequency can be the first choice, the use of the same as above;

438.550MHZ, the Beijing Radio Sports Association club listening frequency, there are many senior radio enthusiasts, the radio is a very important part of the radio, and the radio is a very important part of the radio. Many veteran radio enthusiasts have very strong signaling systems on this frequency;

439.650MHZ, the South City HAM League listening frequency, if you need help in the south, this frequency is the first choice;

438.125MHZ, the West HAM League listening frequency, if you need help in the west, this frequency is the first choice;

437.325MHZ, the West HAM League listening frequency, if you need help in the west, this frequency is the first choice;

437.325MHZ, the West HAM League listening frequency, this frequency is the first choice;

437.500MHZ, cross-country E family agreed frequency, are outside, can help certainly will help;

......... There are also a number of radio frequencies, can not be listed, there is a need for friends please search for "listening frequency".

3, the use of outdoor survival whistle

Survival whistle is indispensable equipment for outdoor sports, play a role in contact, learn the correct use of the survival whistle can make the outdoor sports to get more protection, due to the survival whistle bear the role of a simple communication and orientation direction of the rescue, so nothing do not casually blowing, today we will take a look at the use of survival whistle.

Symbol Description: ● short tone (within one second); ■■■■ long tone (more than 3 seconds); instructions within the whistle interval of 2 ~ 3 seconds, the interval between the instructions of more than 30 seconds (for example, repeat instructions need to be sent at intervals of more than 30 seconds)

Communication (T): ■■■■ (a long tone) is used for the team's voice communication links to determine the orientation of the whistle between each other, after the receipt of the whistle instruction Sent on behalf of the receipt of instructions.

Rally (U): ●●■■■■ (two short and one long) Rally in the direction of the whistle.

Forward (V): ●■■■■ (one short and one long) Sent at rest for the start of the whole team, and during the march for acceleration.

Waiting for the front group (W): ● ■■■■■■ (one short, two long) is used when the group has traveled too long a distance, requiring the front group to wait for the rear group.

Request for Support (S): ●●● (three short) is sent when you are in trouble and need to ask for help, and the receiver of the signal replies with a communication tone (T) to indicate that they will go to support you.

SOS: ●●●■■■■■■■■■●●● (three short, three long, three short) This is the internationally recognized SOS code.

4, compass compass

Compass is one of the essential tools for survival in the wild. In addition to an accurate map, familiarizing yourself with the use of a compass will ensure that you don't lose your way.

The compass usually has a scale, "South" is 180, "North" is 0 (or 360), "East" is 90, "West" is 90. "The role of the geomagnetic field, according to the description of the magnetic field of the fictitious magnetic lines of induction, magnetic lines of induction from the geomagnetic north pole, from the geomagnetic south pole into the formation of closed magnetic lines of induction. And the geomagnetic north pole corresponds to the geographic south pole, and the geomagnetic south pole corresponds to the geographic north pole. The direction of the N pole of the compass is the tangent direction of the magnetic lines of induction, so the N pole on the compass points north and the S pole points south.

The compass should be held horizontally and kept away from the following items to avoid misalignment of the needle: the compass should be kept 10 meters away from barbed wire, 55 meters away from high-voltage wires, 20 meters away from automobiles and airplanes, and 10 meters away from magnets such as magnetic containers. So that when using the compass by these external interference factors will be less.

The role of the compass is similar to the compass, are used to identify the direction. Compass use to zero first, the compass will be placed horizontally, the ring outside the zero scale of the North and the ring inside the pointer indicating the position of the North overlap, so complete the steps that is to complete the zeroing operation of the compass. Measurement of the target azimuth, must be the site of the north and the map of the north of the chevron line, and then the red north pointer line aligned with the target, read out the target and the chevron north of the angle and correct the map's azimuthal deviation angle, that is, for the target azimuth.

5, consider buying a "Beidou box"

BeiDou system is China's self-developed global satellite navigation system, but also one of the world's four major satellite navigation systems. But this is not an ordinary satellite navigation system, it has a little-known function - to be able to send and receive short messages, that is, satellite SMS function. Beidou satellite signal covers the whole of China, no matter when, no matter where, the user can use short message communication without blind spots throughout the country.

"Beidou Box" is an emergency communication terminal based on Beidou system, and its featured function "SOS" is inspired by Beidou short message communication technology. The biggest advantage of "Beidou Box" is that in places without cell phone signals can still rely on satellite text messages to keep in touch with friends and family, and share the donkey's current location, even if the cell phone does not have a signal to let friends and family know the donkey's current location; donkeys and friends encountered difficulties or dangers during the journey, you can use a key SOS alarm to send out the location of the SOS information, so that rescuers can quickly understand the situation to implement the rescue. The volume is small and easy to carry, the price is moderate, you can go to the official website to understand, the key moment this thing can save your life.

6, like more professional positioning can use GPS

Outdoor GPS global positioning system, can help locate, set the line, anti-disorientation, professional handheld GPS should have IPX7 level waterproof performance, underwater 1 meters, waterproof in 30 minutes, 1 meter natural drop drop design, to meet the harsh requirements of field operations, and at the same time, it should have a good range of capabilities.

The correct direction is the first thing that must be guaranteed for outdoor travel, so a basic requirement of GPS is accurate and reliable, especially in the deep mountains and dense forests, if the navigation error, the consequences are disastrous, so try to choose a well-known brand with a good reputation for the product.

Additionally, climbing mountains is a more physically demanding outdoor sport, and we usually plan our trips in advance, so we have to have a correct prediction of the route's difficulty. This is where a GPS with a terrain map can come in handy, and if you have an altimeter and barometer, you'll know how much time and energy we'll need to spend on these sections of the trail through an understanding of the mountain's terrain and elevation.

7, within the affordable range, to buy a suitable satellite phone.

Satellite can provide voice calls, short messages, GPS positioning, voicemail, e-mail, satellite Internet service (portable user base station) and other service items. And the product types are the most common handheld, vehicle-mounted, marine type, base station type and so on. Whether it is deep mountains and wild forests, or desert oceans, can talk at any time; communication quality is good; with positioning function, query location information at any time; small size and light weight, easy to carry; however, the price of satellite phones is more expensive (thousands to tens of thousands of all), the use of tariffs are also more expensive (generally 6 yuan a minute), the general donkeys are very difficult to be able to afford the use of satellite phones cost, is only suitable for the team to use, * * * **Share the cost with the same.