What is radio direction finding?

In radio communication, in order to receive the power of the radio station and ensure the communication quality, people are committed to studying the directional emission and reception of electromagnetic waves. The emphasis is on the research of directional antenna. The research and application of directional antenna laid the foundation for radio direction finding. Radio direction finding is one of competitive sports and the main content of radio activities. It is similar to the well-known hide-and-seek game, but it is a combination of modern radio communication technology and traditional hide-and-seek game, looking for a small signal source (that is, transmitter) that can send out radio waves. The general process is: in the wilderness, mountain jungle or suburbs, parks and other beautiful natural environment. Hide several signal sources in advance and send out regular telegraph signals. Participants hold a radio direction finder to find out the direction of the hidden radio station, run a certain distance on foot, and quickly and accurately find out these signal sources one by one. The winner is to find the specified number of units in the specified time, which has less practical time. Usually we compare the cleverly hidden signal source to a cunning fox, so this sport is also called radio "fox hunting" or "fox catching". The radio direction finding competition is very interesting, just like playing hide and seek. Athletes are busy listening, running and searching for hidden radio stations all over the mountains. The radio direction finding competition is also very mysterious. The competition area is confidential, and the location of the radio station is confidential. Athletes can think and exercise independently during the competition, without the guidance of coaches, and are not allowed to accept any help and tips from anyone. Only the direction finder is the faithful partner of the athletes, indicating the hiding place of foxes to the "master" and guiding the "master" to catch them one by one. During the whole activity, your team will be more United and your way of dealing with problems will be more enlightened. Let's take a break from work and start a spiritual experience. You will find that your life, your job and your attitude towards life will change.

Radio direction finding movement

-a sport that integrates sports, technology and fun.

What is radio direction finding movement?

Radio direction finding is one of competitive sports and the main content of radio activities. It is similar to the well-known hide-and-seek game, but it is a combination of modern radio communication technology and traditional hide-and-seek game, looking for a small signal source (that is, transmitter) that can send out radio waves. The general process is: in the wilderness, mountain jungle or suburbs, parks and other beautiful natural environment. Hide several signal sources in advance and send out regular telegraph signals. Participants hold a radio direction finder to find out the direction of the hidden radio station, run a certain distance on foot, and quickly and accurately find out these signal sources one by one. The winner is to find the specified number of units in the specified time, which has less practical time. Usually we compare the cleverly hidden signal source to a cunning fox, so this sport is also called radio "fox hunting" or "fox catching".

Sports, technology and entertainment are:

Outstanding characteristics of radio direction finding

To participate in this activity, in addition to physical training, they need to learn knowledge about radio and master direction finder or other electronic production skills, which will undoubtedly enrich and extend their classroom knowledge and make classroom learning easier. Moreover, in today's ubiquitous era of electronic technology, it will benefit from this skill for life. Because radio direction finding is neither a purely scientific indoor production nor a single running in a fixed place, it fully embodies the combination of theory and practice, hand and brain, indoor and outdoor, physical fitness and intelligence, and organically integrates science and technology, fitness, leisure and entertainment into the embrace of nature. It is very beneficial to broaden our horizons, increase our knowledge, strengthen our physique, temper our will, carry out national defense education, cultivate the ability of independent thinking and analysis and judgment, promote the all-round development of teenagers' morality, intelligence, physique, beauty and labor, enrich the content of the second classroom in schools, and change from exam-oriented education to quality education. At the same time, it also conforms to the spirit of "popularizing science and technology among teenagers" and implementing the Outline of National Fitness Program, so it has attracted the attention of schools and relevant authorities, and at the same time it has won the support of parents and the love of teenagers. At present, Nanjing and other places have pushed this activity to the society and introduced families. They used the weekend to return to nature and launched the "Radio Fox Hunting Game" for the society and families, which enriched the festival content and added family interest.

Domestic competitions and activities

At present, there are two main types of radio direction finding activities in China: one is short-distance direction finding suitable for popularization in primary and secondary schools. It can be carried out in parks, campuses, suburbs with many trees and pleasant scenery, with a total distance of several hundred meters. The annual National Youth Radio Championship, jointly sponsored by the State Sports General Administration, the Ministry of Education, China Association for Science and Technology, the Central Committee of the Communist Youth League and the All-China Women's Federation, carries out this project, and sets up individual competitions, team competitions and direction finding machine making competitions for men and women in senior high schools, junior high schools and primary schools. Second, the 80-meter long-distance short-wave band (3.5MHz) and the 2-meter ultra-short-wave band (144 MHz) which conform to international rules and are suitable for college and middle school students. The site is located in an area with fluctuation less than 200m and good vegetation, and the total linear distance of the five stations is 5- 10km. This project is set up in the annual national radio direction finding championship jointly sponsored by the State Sports General Administration and the Ministry of Education. In addition, about 65,438+00 national youth direction finding regional competitions are held every year (all regions have bid, and Beijing, Shanghai, Nanjing, Wuhan, Changsha, Guangzhou, Qingdao, Wenzhou, Xiamen, Northeast China and East China have held regional competitions) and about 65,438+00 national grassroots coaches and instructors training courses (all regions have bid). Provinces and cities can also hold competitions of various sizes or various training courses according to actual conditions.

international incident

The World Radio Direction Finding Championship is held every few years. By the end of 2006, China players had won 1 1 gold, 8 silver and 8 bronze. The Asia-Pacific Championship has been held for five times, and * * * won 35 gold, 2 1 silver and 18 bronze. China Radio Direction Finding Team won glory for our country with brilliant achievements. Our country often sends teams to participate in international competitions held by France, Belgium, Japan and other countries. Relevant leaders, principals and teachers of education bureaus in Nanjing, Shanghai, Beijing and other places have teamed up to participate in the competition and achieved excellent results.

How to carry out radio direction finding activities in schools

Radio direction finding is a collective project and must be supported by school leaders. Usually, the short-distance 80-meter direction finding is carried out first, and only two conditions are needed: 1, and the school leaders assign 1-2 part-time tutors to take charge of this activity (if conditions permit, they can be sent for training and study). 2. According to the funding situation of the school, you can invest 2000-4000 yuan to buy several signal sources, and the direction finder will mobilize students to buy them at their own expense. Schools can also buy some public direction finders. Organize students to carry out training. Class or school competitions can also be organized if conditions permit. Even applied to participate in the national youth competition or regional competition. On the basis of short-distance direction finding, gradually carry out long-distance direction finding activities as appropriate, and send personnel to participate in international activities as far as possible when reaching a certain level.

Configuration table of sports equipment for short-distance radio direction finding in schools

General configuration:

serial number

Nominal name

model

amount

Reserve bill

Short 80-meter band direction finding signal source

t 3500 b 1/t 3500 b 1 1

3 sets /2 sets

Short 2m band direction finding signal source

T 144B

5 sets

three

Self-forming point mark

5×5 cm

The two group

four

Acupuncture device

NP09

five

Short 80-band direction finder

PJ-80

1-2/ several

For teaching, each student 1 unit *

6 short 80m band direction finder set PJ-80 1-2 sets/several sets for teaching, each student 1 set *

7 Short 2m-band direction finder PJ-2D 1/ For several teaching purposes, each student has 1 *

eight

Primary radio direction finding textbook

1-2 copies

Teaching purpose

nine

Dry battery for 80-meter band signal source

Consumables, purchased in the market

Dry battery for 2 m band signal source

Number five.

Consumables, purchased in the market

1 1

Common tools (soldering iron, screwdriver, etc. )

1 set

Buy in the market

Small universal ammeter

Buy in the market

Direction finding battery for students

Number five.

Buy in the market *

Description:

1. Where there is an "*" in the table, it means that students are advised to buy at their own expense.

2. The above configuration can also be carried out in two steps: first, configure the equipment with a short 80-meter band, and then configure the equipment with a short 2-meter band after gaining experience through a period of training.

3. The above configuration does not include standby equipment.

Full configuration: