♂?，，
Dongling City East Suburbs.
"Damn it!" Gu Feng, who was on duty, suddenly took off his headphones and cursed.
"What's wrong, madman?" Sun Kai asked in surprise. Wang Dairen and Wu Chengli, who were busy beside him, also showed a look of astonishment.
"The background noise suddenly increased several times, it must be those people from the monitoring station... They're sending out interference signals again!" Gu Feng originally wanted to scold them as "sons", but then suddenly reacted and remembered that Wu Chengli's father was the director of the monitoring station, so he hastily changed his words.
Gu Feng is considered an old-timer in Dongling City, having participated in many international competitions and possessing extremely rich competitive experience. Basically, the members of the Dongling City Amateur Radio Club were all brought up by him, it can be said that without him, the club would not be able to operate at all.
So, for the Dongling City jamming devices, Gu Feng was also very clear. These two devices were also just set up a few years ago, when he participated in an international amateur radio competition, and it was SSB voice mode. However, due to lack of preparation, as soon as the monitoring station's jamming device was turned on, he was blinded by the interference. At that time, no signal could be received at all, and the competition couldn't proceed. He even thought his own radio was broken.
It wasn't until later that I found out it was the people from Dongling City's wireless monitoring station who had invented some kind of wireless interference device. Every time something like this happened, they would transmit a huge amount of interference signals outward, and any slightly weaker signals couldn't get in or out. As a result, the entire city of Dongling seemed to have entered an electromagnetic shielding zone. The whole city's ham radio operators cursed nonstop at times like these, but were powerless to do anything about it.
Since it can't be avoided, we can only break through by ourselves. The hamsters have a spirit of not giving up and being willing to study hard. The hamsters in Dongling City can only rely on their own technology to break through the "electromagnetic shield", and after such a long time, they have accumulated quite a bit of experience in electromagnetic countermeasures.
Scolding is scolding, but the game must go on. Moreover, they also made some special preparations to break through the electromagnetic seal this time. So Wang Dalei ran outside and started adjusting the direction of the antenna, while Gu Feng began to adjust some basic parameters of the sky adjustment.
……
A residential area in Dongling City.
"Here we go again!"
Listening to the rustling sound in his earphones, a long-haired young man muttered something and ran up to the rooftop, starting to adjust the direction of the antenna he had set up.
Just at this moment, someone suddenly shouted from behind: "Halt! What are you doing?"
The long-haired young man was startled and his body shook violently. He turned around to see several middle-aged women with red armbands on their arms, standing behind him along with two tall security guards, looking at him with serious faces and a hint of excitement in their eyes.
The long-haired young man explained: "Uh... I'm just adjusting the antenna."
Several middle-aged women surrounded him without hesitation, sizing him up from head to toe.
"Hey young man, we're from the residential committee, what's your name? You look so familiar?"
"My name is Wang Jiahua, I just moved here recently." The long-haired young man replied truthfully.
"Someone reported that you are engaging in espionage activities, confess honestly, is this radio antenna used to contact the spy?" one of the fat aunts shouted loudly.
"Huh......" The long-haired young man was shocked, and only now did he see that the tall security guard was intentionally or unintentionally blocking the door to the rooftop, as if afraid he would escape.
He somewhat understood, and couldn't help but laugh and cry as he said: "Everyone, don't misunderstand, I'm the new technical staff at Lujiang Electric Ceramics Factory, how could I be a spy? If you don't believe me, you can go to Lujiang Electric to investigate."
"Still trying to talk your way out of this!" The fat woman was relentless, pointing at the antenna on the rooftop. "What's that? That's evidence of transmitting signals! Come on, let's go search the room and we'll catch you red-handed, see if you can still try to deny it then!"
In the room of a young man with long hair, some strange electronic devices were placed. If Hamlet saw them, he would definitely know that these devices were a complete set of wireless radios. Although the several aunties from the residential committee did not understand these things, they could also see some clues from their appearance. Recently, wasn't it popular to watch spy war dramas? They had seen similar scenes on TV before.
The poor long-haired young man explained to the neighborhood committee's big mothers for half a day, and finally showed them his student ID card, but still failed to gain their trust. Later, a police officer came, fortunately, that police officer had heard about the ham sausage incident, so he was not taken as an enemy agent to the police station for interrogation.
Such similar situations are constantly staged all over the country, due to people's insufficient understanding of amateur radio activities, Chinese hams face various difficulties and challenges, but this cannot stop their enthusiasm for radio.
After the electromagnetic shield appeared in Dongling City, Lin Hong also noticed it at the first time.
He also specially removed the filter he made and tested it, finding that the wireless signal was very poor at this moment, but he didn't know what the reason was, only speculating that there must be several very powerful interference sources in Dongling City.
Fortunately, he had an "adaptive signal filter" in his hand, which was small but just the nemesis of these interference signals. After filtering out those invalid interference signals, the signals he received were basically still between "58" and "59". Only the signals sent out were affected to some extent, but fortunately, these signals were all in CW mode, so the impact was minimized.
Time flew by, and while others had already changed shifts, Lin Hong was still tirelessly communicating with others, quickly and accurately. He forgot about time, and the communication log papers next to him grew more and more, gradually covering the entire floor.
It wasn't until after three in the afternoon that his stomach growled loudly, reminding him that he hadn't eaten lunch yet. At this time, the radio signal was also becoming weaker and the communication effect was not good, so Lin Hong stood up, stretched his slightly stiff body, and came to the workbench to wolf down the lunch he had brought with him.
Lin Hong felt his brain was a bit dizzy after concentrating for so long, and after finishing dinner, he didn't immediately start the competition again. Instead, he switched the communication mode to SSB mode, wanting to listen on the radio to other hams' comments on this match.
As expected, today's amateur frequency band is exceptionally lively, at least several times more lively than before. Everyone on the channel was discussing the CQWW_DX competition in a lively and noisy manner. Most people were newcomers who didn't know that such a competitive project existed in the world of ham radio.
Lin Hong listened for a while, but didn't hear any useful information. Maybe the masters were all busy preparing for the competition and wouldn't waste their time chatting here at this hour, either they were still on duty or resting and sleeping.
Just as he was about to switch back to CW mode, he heard someone calling his call sign on the channel. It wasn't just anyone, but his American ham friend W5AUN Little Girl.
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