♂?，，

  Lin Hongtong's efficiency is very high, thanks to his self-made "signal filter" processing, most of the signals he receives are "59", indicating that the signal is excellent, not only in strength but also with extremely low noise, even if it's not "59", at least it's above "57".

  He and other hams basically once the communication is established, the probability of mishearing and repeating is very small, unless the other party makes a mistake due to hesitation or sends the wrong signal, otherwise it's usually just one time, then "QRZ" and "73".

  However, Lin Hong still felt that this efficiency was a bit low. This situation had been anticipated by him for a long time. Most domestic amateur radio operators did not have much experience with wireless telegraphy, and their foundation in Morse code was relatively weak. Many were unfamiliar with sending signals, which often required correction during the communication process, resulting in a longer connection time.

  Lin Hongtong connected to the ham radio, from the call sign, it can be seen that most of them have a fourth-level certificate, and a small part have a third-level certificate. He has not found one with a second-level certificate yet.

  In addition, as time went on, Lin Hong found that more and more "interference" signals began to enter the channel. It was some unclear ham radio operators who suddenly discovered a surge in signals during this period, with many people constantly making "street vendor"-style calls. As a result, they felt very excited and responded one after another, establishing contact with the contestants and inquiring about relevant information.

  These people are basically those who have never heard of the CQWW_DX contest, and most of them are newcomers who have just started. The efficiency of not being connected is simply unbearable, and they don't even have basic common sense, so they need to spend a lot of effort explaining, but still can't understand what's being said after half a day.

  This would be fine in peacetime, when everyone has time and is motivated by the "spirit of ham radio" to make contact with them. But now it's contest time, every minute and second counts, so they just have to break off and look for other targets to contact, resulting in many ineffective contacts.

  Then Lin Hong adjusted the wave band to 15 meters and decided to aim the wooden melon at foreign countries.

  ……

  Northwest of Beijing

  The entire room was very quiet, with only the sound of Morse code beeping away. Duan Fei sat at the main operating desk, wearing headphones and making CQ calls on the 20-meter band. Every now and then, he would establish a QSO contact, and immediately write down the other party's call sign, frequency, and other parameters on a small piece of white paper about the size of a handkerchief. After completing a full contact, he would wave his hand, and a nearby member of the amateur radio association would quickly take away the paper and give it to someone sitting at a personal computer who was entering data into software.

  And the person in front of the computer also reported from time to time the various prompts that kept appearing in the software on the computer, so that Duan Fei and Xu Wenle could adjust their respective communication strategies in a timely manner.

  While another station was in front, Hsu Wen-le also listened seriously to the signals sent by other hams. Once he found a ham signal from an area or country that had not yet established communication, he immediately initiated contact and established QSO. After exchanging name card information at the fastest speed, they said "73" to end the communication.

  Of course, due to the restrictions of the competition rules, at the same time, they cannot communicate or send signals simultaneously. In order to avoid breaking the rules and being given a "red card" or "yellow card", thereby completely losing their eligibility for the award, a physical interlock mechanism has been established between these two wireless stations, so that as long as one is communicating or sending signals, the other cannot work.

  This time's 160 long antenna is indeed different from usual. Based on past experience, the background noise at this moment should be extremely severe.

  As the entire city awakens, all sorts of ineffective radio waves fill the air, often forming a very strong interference layer that envelops the entire city, just like a "protective cover" electromagnetic layer. Regardless of whether it's an outgoing signal or an incoming signal, they will all be reprocessed through this "electromagnetic layer". The original "59" signal can immediately become a "46" or "36" signal after going through this process.

  But this time, with the powerful antenna and the change of location, both receiving and sending signals were very strong. Hearing the "599" signal reports from other hams made everyone very happy.

  On the wall of the front face of the engineering house, there is a huge world map and a slightly smaller Chinese map. On the map, someone has re-divided all regions according to the national division method of the wireless industry, re-dividing the "national borders" and "division boundaries".

  Xu Wenjing is now holding a small red flag and inserting it into the map of China. Although there is also a map function in logger32 software, due to the small display screen, it doesn't look very convenient. So finally decided to hang two maps on the wall, update the "occupied" areas in time, this way looks more intuitive.

  Everyone was sitting in an orderly manner, doing their own thing. Except for a few people, many of them were not participating for the first time, and after multiple rehearsals before the competition, they naturally knew what to do at this moment.

  Compared to SSB's voice call mode, CW telegraph communication is indeed too quiet. For an outsider like me, just sitting there quietly, not saying a word, constantly pressing the key, it's really a bit too boring. I couldn't feel the tension and excitement that should come with international competitions.

  She and the photographer stood aside, wanting to ask something, but afraid of disturbing their game.

  So Zhong Yun had to run to Xu Wenjing's side and helped her insert small flags on the map. As for how to insert them, she could only ask Xu Wenjing in a low voice.

  About half an hour after the match started, Duan Fei and Xu Wenle's communication efficiency began to slow down. Sometimes they had to throw away several sheets of paper before they could get one that was relatively complete and effective.

  "This won't do." Duan Fei said somewhat irritably as he took off his headphones.

  The person appearing in the air is an interference signal that has seriously affected his communication efficiency.

  "What's wrong?" Xu Wenle asked, taking off his headphones.

  Because he was operating on a coefficient platform, the focus was on some new countries that had not appeared in their occupied areas, so they didn't know where Duan Fei's depression came from.

  Others also stopped their work in hand, with a look of puzzlement on their faces.

  "There are too many newcomers on the 20-meter band at home now, and many people don't even know we're participating in a contest. To establish communication with them, we have to explain it to them in detail, which is such a waste of time."

  Wu Bai furrowed his brow and thought for a moment, suggesting: "Let's not worry about the domestic divisions for now, let's first get in touch with Japan and Southeast Asia's Huotui."

  ==

  Today continues with three updates, if you have a vote, please recommend it, and another update at 8 pm tonight!

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