But only three boxes were found. What does that mean?

This indicates that they used a remote one-to-one repeater.

The principle is simple: it uses the power of the signal tower for long-distance transmission and reception.

If it's not within five kilometers, then it's six or seven kilometers?

A remote one-to-one repeater can reach a range of about three kilometers based on power conversion. Based on the devices located, the average range is around 1.8 kilometers.

Expanding the search further would be much more difficult and would require a huge amount of manpower and resources.

Even if it's difficult, we have to go through with it. We'll work with the post and telecommunications construction team to investigate and find this thing.

Zheng Haishan sat in a van with a laptop on his lap. The laptop displayed a waveform display software; wherever there was signal coverage, wavy lines would appear on the computer's graph.

Behind him, a teammate asked, "Captain, isn't our search and dismantling process alerting the enemy? They certainly won't activate their equipment to gather information about eavesdropping sources during this time."

"Let's focus on safety first." After staring at the graphic for a while, he turned his head and said, "I asked the hardware team at DaMi about the cost of this thing. After they disassembled it, they told me it would cost about 30,000 US dollars."

"So expensive."

Zheng Haishan nodded and continued, "They definitely wouldn't want to throw away something so expensive. We've already dismantled three; if there are any left, will they dismantle them themselves, or will they continue to use them?"

"If it were me, I would have run away long ago. I'm in charge of tens of thousands of pieces of equipment; my life is more important."

"No, they will stay; they won't run away, they will continue to hide."

"Then how do you think they got all this equipment in?"

"Take a picture of the device, then send a request for assistance to customs to see if they have encountered this type of thing before."

"Isn't this like finding a needle in a haystack?"

"Then tell me if there's any other good way? They do random checks often. What if they've seen something similar during one of those checks? These things all have names, but we don't even know their real names. We only know that they're a general term like 'intermediate device'," Zheng Haishan said.

His teammate nodded in agreement, saying, "That's true. If we could find out the real scientific name and check the customs import documents, we could know which company imported it. The problem is that it was brought in by human hands."

"That's possible, but it wouldn't be easy to smuggle in a dozen or so."

"So we're just going to stare at the diagrams?"

Zheng Haishan took out a map of Luzhong City, pointed to the red circles marked on it, each red circle being a signal tower, and pointed to the location of the repeaters, saying, "Look at the locations of these three repeaters, draw a line, and point it in the direction of the city!"

"You mean it's still available in the city?"

"The higher the signal, the better. There are signal towers in the southern mountainous area, as well as Huashan and Tieshan in the southeast."

"I'll send someone to investigate right away."

"Don't go. I've already arranged for someone to go there. Just wait for news. I'm just afraid there won't be any."

"No?" The team member was taken aback, then realized what he meant and continued, "Then it'll extend across the entire central Shandong city in the southern mountainous area. How much equipment would that require! Thirty thousand US dollars per piece, dozens of kilometers? How much money would that cost!"

Zheng Haishan frowned slightly, saying with a hint of dissatisfaction, "Why do you care how much money they spend? The point is, it's already quite advanced that it can operate across the entire city without interference. And this is right under Da Mi's nose; what if it were targeting our more important departments and people?"

“We definitely have to find it, but our technology is outdated. How about we ask the rice farmers for help? They have a lot of technical personnel; maybe they can help us find it,” the team member said.

Zheng Haishan didn't rush to ask Da Mi for help; instead, he first tried to figure out his own guess. If there were only a few repeaters, there was no need to ask Da Mi.

If wireless signal transmission can truly span the entire city, then the enemy is one step ahead.

The van is used at several key points in the city to facilitate the use of professional communication equipment to locate signal bands and perform signal analysis.

After Zhao Haiyan finished speaking, she picked up a pair of shoes and walked towards the mall, to the same shoe repair shop.

There were quite a few people at this time, all waiting to have their shoes repaired or pick up.

Zhao Haiyan waited patiently on the side. Almost fourteen minutes passed before it was her turn.

The same old question: "You need to nail a small metal shoe to the heel of your shoe. We don't have any that small here. I'll go look for one in the back. Please wait a moment."

Less than two minutes later, the shoe repairman came out with a small, metal-like hand in his hand. He sat down and began nailing the shoe.

He finished in no time and said to Zhao Haiyan, "Five cents!"

"Here you go." Zhao Haiyan took out fifty cents from her small bag, folded it, and handed it to the shoe repairman, saying thank you casually.

There were no unnecessary words spoken throughout the entire process.

In the single dormitory, close the door, draw the curtains, pry open the heel of the shoe repairman, and take out a piece of paper from inside.

Upon arriving in the kitchen, I filled the kettle with water, placed it on the stove, turned on the valve of the liquefied gas cylinder, and then lit it with fire.

Only then did she open the paper and carefully read its contents.

"There are signs of consolidation in the rice industry, but it will take time to fully develop."

This short passage is very easy to remember; just read it and light it on your gas stove.

Back in the living room, I drew back the curtains.

I glanced at the sunset outside, went to the coffee table, took out a cigarette case and ashtray from under the table, lit a cigarette, and relaxed on the sofa.

She was trying to figure out who to ask. She had heard rumors about the consolidation of the rice industry, and she could sense the subtle atmosphere within the company, but it wasn't something she could get involved in.

Before she could finish her cigarette, the kettle in the kitchen hissed, telling her the water was ready.

This chapter is not finished yet. Please click on the next page to continue reading the exciting content!