What are the rules of radio directional movement?

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. Generally, competitions are held in complex places with undulating terrain, many trees and poor sight. This can reduce the interaction between athletes and increase the difficulty. A few days before the game, the referee should carefully survey the terrain, select the competition area and set the location of the hidden radio station. On the day of the competition, train the operators to take the transmitter to the designated position and start the machine to transmit signals. Hidden radio stations send letters in turn. Each station works every cycle 1 min, and the call sign of the station is repeatedly issued for athletes to listen to. The call signs of 1 5 stations are MOE, MOI, MOS, MOH and MO5 respectively. Each call sign is sent by the transmitter in Morse code. All stations should be hidden so that athletes can't easily find them when they get close.

The distance between hidden radio stations is limited by two rules. The total linear distance between successive stations with reasonable sequence is 4 to 7 kilometers. The actual running distance of an athlete participating in a competition is about 6 to 10 km.

On the day of the competition, the athletes gathered at the station and were taken to the starting point of the competition venue after being named by the referee. Don't wear headphones on the road, let alone listen to the signal. After arriving at the starting point, the athletes are restricted to do all kinds of preparatory work or rest in the preparation area surrounded by signs, waiting for the departure notice. The direction finder is temporarily stored in the place designated by the referee. Figure 1- 1 shows the schematic diagram of the initial site setting.

During the competition, athletes start from the starting point in batches at equal time intervals. Which batch should each athlete start from? Draw lots one or two days before the game. Each batch of athletes will be called and notified by the referee 10 minutes before departure. After receiving the direction finder and the topographic map of the competition area, look at the map and wait for the departure password.

At the start, the athletes stand in the starting circle. After hearing the "start" password, the athlete left the starting circle and ran to the starting finish line to enter the competition. From the moment the "start" password is issued, the referee begins to calculate the actual time of the athletes' competition. After starting, athletes are not allowed to return to the starting point, but can only exercise independently and determine the direction of the radio station. Among several hidden radio stations set up in this place, except the required radio station, it is up to the athletes to decide which one to look for, which to look for in the future, or which to give up. But it must be completed within a limited time. Overtime does not count. Every time a radio station is found, athletes must use the prescribed seal or other marking tools to mark their own competition cards as evidence that the referee determines that the athletes have found the radio station. Athletes must cross the "finish line" when they reach the finish line. The referee records the time for each athlete to cross the finish line, and then calculates the actual time for each athlete according to the athlete's departure time. When evaluating the results, first compare the number of units that everyone is looking for, and then compare the actual time spent, so that those who are looking for more units and spend less time rank first.