The first type: two monitoring devices, which can capture radio waves in different bands of waves emitted by the other party and intercept the other party's telegram code.

One of them is relatively fixed, the other is a mobile type, and both can be used on a car.

The second type: modify the radio stations. These radio stations are the latest models from Xiangliyun. In addition, Tang Xiaowan has disassembled and reinstalled them all, and added several different models of radio stations to some ready-made or homemade accessories.

In this way, it has become a brand new model, with stronger encryption and anti-interference performance. However, because some accessories are still missing, it cannot achieve the effect that Tang Xiaowan is satisfied with.

Of course, compared with later radio stations, this radio station is still very backward. What Tang Xiaowan wants is a special band.

This kind of band cannot be monitored by the current surveillance methods in this world, and Tang Xiaowan is very confident about this.

It depends on whether the next batch of materials can be modified after they arrive.

The third type: interfering device. This type of device has two functions.

First, it is placed near the radio station on your side. In this way, even if the enemy catches radio waves, it will be interfered with, and it is all garbled and cannot be cracked at all.

However, Tang Xiaowan has a way to make her own radio waves smoothly avoid interfering signals and send out the correct code.

Another function is to increase the power and place it within a range of hundreds of meters on the enemy's radio station. In this way, the radio waves emitted by the enemy will also be disturbed.

The best thing is that the party that emits the radio waves cannot detect them at all, but the radio waves received by the enemy's receiver have completely changed, randomly garbled...

It's just that it's dangerous to do so.

Because once the enemy finds that he receives garbled codes, he can guess someone is secretly making trouble.

This interference device can only be placed within a range of a few hundred meters. At that time, the enemy will immediately launch and search in all directions, and the situation will be exposed.

Therefore, Tang Xiaowan had to continue to find ways to increase the power so that the distance of this interference device could reach a range of several kilometers, so that it would be difficult for the enemy to search.

However, it is not easy to improve because it needs accessories. However, the technology in this world now cannot have such accessories unless it is made by itself.

But to make it yourself, you need a series of tools and precise instruments. Similarly, these things are difficult to find...

There is a saying: Poverty limits people's imagination. In other words, technology limits people's imagination and progress.

For Tang Xiaowan now, she is like a skilled chef who knows how to make exquisite dishes, but she doesn’t have good ingredients.

However, the more this happens, the more it aroused Tang Xiaowan's competitive spirit and a stimulation of extreme challenges.

It is nothing to use ready-made exquisite ingredients to make exquisite dishes. It is genius to be able to use some ordinary ingredients to make taste and delicious that is no less than the delicacies of mountains and seas.

Of course, Tang Xiaowan didn't have much sense of accomplishment for these three equipments made by rushing to work. After all, in her eyes, these things are still very backward.

But in the eyes of Situ Jun and others, it is undoubtedly an epoch-making product.

Although the experiment has not started yet, they believe in Tang Xiaowan's level. With these things, they can grasp the enemy's dynamics and take measures in advance.

"That's great, thank you Miss Tang. Now, I can't wait to intercept the radio waves from Yamamoto Headquarters..."

"Yes, you can bring this mobile radio station first. The effect of this mobile radio station is slightly worse than that of a fixed one, but as long as the distance is not too far and the movement speed is not fast, there is no problem."

"Or else, I will bring both of them with me and use two cars, one slowly shaking, and the other pretending to be repairing the car nearby..."

"It's OK, but be careful." Tang Xiaowan ordered.

Situ Jun smiled and said, "This is not a big problem. After all, Yamamoto has not yet alerted him. He has no idea that we have such technology. We will only pay attention unless the telegram leaks repeatedly."

"It makes sense." Tang Xiaowan nodded subconsciously.

Soon after, Situ Jun arranged more than 20 confidants to dress up in different identities and wandered around the streets near the garrison headquarters of the Yingguo Concession.

This is also to facilitate response if something happens.

Then the two cars were loaded onto the radio stations respectively. According to the plan, one was parked on the small street next to the headquarters to pretend to be a repair vehicle, and the other was slowly turning around near the headquarters.

This is actually just a preliminary plan. This method can only be used two or three times, and it will probably attract attention over time.

Therefore, Situ Jun plans to change to a rickshaw or even a porter in the future... In short, the method must be changed frequently...

late at night.

The group met in the secret room again.

This time, without Tang Xiaowan's deciphering, Xiangxiang and Situ Jun could understand the telegrams sent by each other.

Because Tang Xiaowan has made a password book that can be translated accordingly.

The Japanese were still very careful in this regard, using a three-time password. What is a three-time password? In other words, you must first unwrap the first password, and you can already see the content of the telegram.

However, the content of this telegram is just some very ordinary content. Then the second decryption is required based on this paragraph.

After decrypting again, the content of this text becomes another type of code.

At this time, unraveling these codes is the real content of the telegram. This method is already at the most advanced level in this world.

But in the modern world, this method has long been eliminated. Because most of the methods adopted now are digital encryption, even if you use the most advanced computer computing, it may be difficult to solve in a month.

In this operation, four telegrams were intercepted. One of them was because a section was missing during the movement, and the information was not fully displayed.

However, after analysis, this telegram should be just an ordinary report and is not important.

The most important thing is one of them, because this telegram was sent by the Yingguo Military Department, and the content is: Basically ready, and the action is expected to be launched in one month.

Although the telegram did not explain what the action was, Situ Jun's face changed drastically after reading it.

Even Xiangxiang exclaimed: "Can they start a war in a month?"

"Yes, this is very likely!"

Situ Jun held his fist tightly, looking worried.

One month, time is too tight, and they still have a lot of preparations not completed.

What’s important is that Situ Jun knew very well that the power of the two sides was very different. Although there were not many people in Ying Kingdom, the maximum number of troops that could be sent was hundreds of thousands, and all the troops in Xinhai, plus the major warlords, were probably as many as four or five million.
Chapter completed!