Chapter 26 Event

Lin Hong carefully wrote the address of QBB on a workbook next to him, but the other party still did not disclose his name to him, just asked him to write her call sign directly. Originally, Lin Hong thought that she would not receive it, but QBB said that Lin Hong could rest assured that he would definitely arrive.

Since the other party said so, Lin Hong will follow her.

After

, the two talked about other topics for a while, but the main thing was that QBB was talking about some interesting things about their school and her troubles as a monitor. Lin Hong also roughly understood the difference between urban schools and rural schools.

At the end, QBB mentioned a thing, saying that his brother was recently preparing to participate in a worldwide ham race called "CQWW_DX_Contest", for which he had been preparing for several weeks. Since Lin Hong has obtained the second-level certificate, she casually suggested that it is not good for Lin Hong to participate, so as to test the level of his technology in the world.

Then, QBB went offline. She still has homework to do, so she can't chat too late.

"CQWW_DX Competition?"

Lin Hong heard this game for the first time. Although when he communicated with other hams before, he occasionally heard them talk about some content about the event, Lin Hong never paid attention to it. He focused all his attention on improving his radio station and collecting QSL cards crazily.

On the wall of the room, there is a world map, most of which is covered with small red flags, indicating that these countries and regions have been "occupied" by him. Basically, he has connected all the countries and regions that can be connected.

In the concept of the ham clan, "country" contains another meaning, which is quite different from the meaning usually refers to.

The American Amateur Radio Association (ARRL) divides the world into more than 330 entities, which are also called "states", which are different from "states" in the political sense. A country in the political sense may include multiple "states" on amateur radio, for example, for hams. Mainland China, Hong Kong, Macao, Taiwan, Dongsha Island, Huangyan Island and Nansha Islands belong to seven different "countries" respectively.

Among these more than 330 countries, they can be roughly divided into common countries and rare countries. For example, the United States and Japan are common countries, while China's Huangyan Island, located in the Zhongsha Islands, is not far from us, but because it is an uninhabited reef, it is a very rare country.

Sometimes, in order to connect with hams in a rare country, Lin Hong often squatting on a channel all night may be fruitless, which is a great test of technology and patience.

In the past three years, Lin Hong has successfully connected with thousands of people around the world and successfully exchanged QSL cards with about 200 hams. Among these two hundred people, there are only three foreign friends who have established a deep friendship with him.

One of them is a young man who is studying in college. He is located in Finland. His call sign is OH3LUS. His technology is very powerful and he likes to study new things. Lin Hong often discusses some of the latest technologies in the radio field with him, which is an important source of information for Lin Hong in the radio field.

There is also an elderly American man, whose call sign is N7LZT. He has been playing radio for 30 years and is a "master" in this field. Lin Hong speculates that he may be more powerful than the old Xu in this regard. Lin Hong usually asks him for some advice. Problems that I can't figure out. And the other party also likes to answer Lin Hong's questions, because Lin Hong's questions are often very difficult. According to the other party, they are "creative and inspiring".

The rest was an American girl with the call sign W5AUN. Lin Hong speculated that the other party might be about the same age as himself. At first, he didn't know anything. He ignorantly plunged into the world of amateur radio. After Lin Hong heard her call, he remembered himself a few years ago, so he learned Q BB, a guest appearance as her entry-level tutor, but he didn't expect that the other party was really a little talented. He quickly got started and got his own radio license and call sign. Since then on, he has established a deep friendship with Lin Hong.

However, most of the time, the topic between Lin Hong and her is not about technology. Most of the time, Lin Hong still plays the role of a mentor, but he has changed from a technical tutor to a psychological tutor. The little girl's parents have long been divorced, and they usually care too little about her. In the dead of night, they often hear the little girl crying and telling him what's on the radio.

Lin Hong himself knows very little about amateur radio world competitions, but he knows that Finland's OH3LUS must know, and he is very good at it, because Lin Hong often hears him on the radio that he has achieved excellent results in what competition, but at that time, Lin Hong did not care about such events. , so the other party gradually rarely mentioned it in front of him.

Lin Hong picked up the voice pager, adjusted the radio frequency to the long-distance short-wave communication gear, and then began to call in English:

"OH3LUS_THIS_IS_BD7XZZ_CALLING_AND_STANDYING_BY..." (OH3LUS, this is BD7XZZ calling and listening)

After three years of hard self-study and continuous practice, Lin Hong's English has become very fluent. He can talk directly with Americans without any obstacles, and he is also familiar with various professional vocabulary in electronic and electrical appliances. Because of his strong memory, he can even imitate several people with local American accents, such as New York. The sound and Washington accent, an insistible person, thought that he had stayed in these two places for a long time.

Lin Hong didn't call once, so he stopped for about ten seconds, so that the other party could have a buffer reaction time. When he called five or six times, he received a reply from the other party. Coincidentally, the other party just came home after having supper with his friends. If it was earlier, Lin Hong might have to wait for a long time.

There is a six-hour time difference between China and Finland. China is the East Eighth District, and Finland belongs to the East Second District, so it sees the sun six hours later than China.

First of all, Lin Hong explained the reason for the change of his title, and the other party was very happy to congratulate him on his successful promotion.

Then, Lin Hong asked about the "CQWW_DX Competition".

The other party really knew a lot about this competition. He was also very happy to hear that Lin Hong was finally interested in this kind of competition. It took a long time to tell Lin Hong all the information about this competition carefully.

It turns out that this is an international amateur radio enthusiast event hosted by CQ magazine in the United States. It is one of the most influential and most involved events in the radio industry. There are three main communication modes, namely, single-sided talk (SSB), equal-width telegraph (CW) and radio (RTTY) mode.

SSB communication mode usually refers to the voice mode that Lin Hong usually uses most, while CW mode uses the electric key button to communicate by sending a long and short Moss code.

What surprised Lin Hong most was that there was another model called RTTY. He has never used this model before. Although he has seen a few words of this model in the information, he has been ignoring it because he has not seen further details. IT IS NOT UNTIL TODAY THAT HE LEARNS FROM OH3LUS THAT THE RTTY MODE IS ALSO ONE OF THE MOST POPULAR COMMUNICATION MODES IN THE WORLD.

After his repeated inquiries, he finally got a general understanding of this model.

In fact, the RTTY mode appeared during World War II. At the beginning, the technology originally used for wired teletype was transferred to radio to transmit text. After the war, some amateur radio personnel used some replaced equipment to start amateur communication.

However, since the emergence of electronic computers, the ancient teletypewriter has since withdrawn from the historical stage and has been completely replaced by electronic computers.

Connect the radio station through an electronic computer to realize the automatic sending and reception of signals. Although it still requires manual frequency modulation to search for stations, the communication efficiency and speed have been qualitatively improved.

OH3LUS said that due to the emergence of personal computers, the RTTY mode has developed very rapidly.

This day is the first time that Lin Hong has really come into contact with the concept of computer.

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Lin Hong finally heard about the computer~ Shouldn't the brothers smash the ticket?