After careful observation, Lin Mo discovered that the radio station installed in this radio should be a small radio station specially developed for spies.

However, because this radio is not small, Lin Mo didn't know how small this radio is, and the radio was obviously modified.

Thinking of this, Lin Mo turned on the radio and the music suddenly sounded.

When Lin Mo heard the music, he was shocked. Of course, Lin Mo was not shocked by music. He had no musical cells and had no interest in music.

Lin Mo was shocked by the size of this radio station, because the radio station was clearly working normally at this time, which means that the radio was also transformed by the Japanese.

But no matter what, if you want to concentrate the components of the radio and radio together and leave a lot of space to place the components of the radio, the size of the radio is definitely not large.

Seeing Lin Mo's surprised expression, Liu Zhenshan asked in confusion: "Lin Mo, what's wrong with you? Why is this expression?"

Hearing this, Lin Mo said, "Brother Liu, look, is the radio station of this Japanese spy a little too small?"

Then, Lin Mo told Liu Zhenshan in detail his inference.

After hearing this, Liu Zhenshan also looked at the radio station carefully and said, "This thing is really good, but there is nothing to be surprised. This thing should not have much power."

"There are some differences between our intelligence organizations and the radio stations used by your army. This radio station should only be connected to Shanghai."

"And this thing is very expensive and is not suitable for large-scale use by the army. Moreover, the distance will be greatly affected. Your army is not equipped at all, so it is normal for you not to know."

Lin Mo certainly knew about these things, but the distance between Nanjing and Shanghai is not close. It is also very good for Japan to make such things.

Because the size can be reduced to such a small size, the technology used, in Lin Mo's view, can already make the walkie-phones that the United States equipped in the late Pacific War.

However, when Lin Mo heard the price issue mentioned by Liu Zhenshan, he also reacted. The technology of this thing should have just been released, so the price will definitely not be low.

Just like the phone number in later generations just came out, the price was simply that in this era, except for the wealthy Americans in the late war, with the situation of other countries, they might not even have this idea.

Moreover, the current Americans, with the world's largest economic strength, may not dare to really popularize this technology in the face of this new technology.

This technology can be used in this period of time, wherever it can be applied, it may be used by lurking spies.

Seeing Lin Mo wondering what he was thinking, Liu Zhenshan thought Lin Mo was still surprised by the radio station, so he quietly put his head in Lin Mo's ear and whispered: "Actually, we have this thing too."

Hearing this, Lin Mo turned to look at Liu Zhenshan, with a little surprised face.

Seeing this situation, Liu Zhenshan smiled and whispered: "Our Military Intelligence Department has also made this thing, but due to technical reasons, many parts have to be purchased from abroad."

"It's not only difficult to buy, but also the price is very high, so it can't produce much."

Speaking of this, Liu Zhenshan stopped decisively and stopped revealing other information to Lin Mo.

However, these words have already made Lin Mo analyze countless things from the Military Intelligence Department based on what later generations have known.

When Lin Mo was later born, he knew that the Military Intelligence Service had done a very good job in deciphering and could be named worldwide.

Judging from the situation revealed by Liu Zhenshan just now, the deciphering work of the Military Intelligence Department has obviously begun and has made considerable progress.

In this way, once Lin Mo and the others find the Japanese spy's password book this time, the credit will become even greater.

Thinking of this, Lin Mo began to look around and search to see if he could find the codebook of the Japanese spy.

Seeing Lin Mo continue to search, Liu Zhenshan asked, "Lin Mo, what are you looking for?"

Hearing this, Lin Mo stopped the movements in his hand, turned to Liu Zhenshan and asked: "Brother Liu, can you tell me if the codebook of Japanese spies is specially compiled, or is it just an ordinary book used as a codebook?"

Hearing this, Liu Zhenshan smiled bitterly and said, "Lin Mo, we have never seen any codebooks of Japanese spies before."

Hearing this, Lin Mo was stunned at first, then shook his head in disappointment, and planned to continue searching.

Seeing this situation, Liu Zhenshan smiled and said, "Lin Mo, don't be anxious first! If others don't know, it doesn't mean I don't know."

Hearing this, Lin Mo also knew that he had been fooled by Liu Zhenshan, but Lin Mo was not angry, but hurriedly said, "Brother Liu, don't joke with me, hurry up and tell me."

When Liu Zhenshan heard this, he put away the smile on his face and explained: "Although we have never obtained the codebook of Japanese spies, I have seen many of them that have been destroyed."

"Every time I act, I will flip through the burned dust of Japanese spies. Although many of them were burned, they will still leave some traces."

"According to my observation, both these codebooks should exist. From the perspective of my spy organization, this special codebook should be just a codebook with a high level of confidentiality."

"And a book's password book should be a higher level of confidentiality, or even a password book dedicated to one-on-one contact, but this situation should be very rare, and we have only discovered it once."

"I guess this situation is made to keep it confidential. After all, you use the book as a password book to contact us. If you hide it, then we will definitely know that it is a password book when we search it."

"When we put it outside, once we catch two groups of spies using the same book, we can also launch which book is a codebook."

"If each Japanese spy team uses different books, how many books do you think the Japanese spy organization needs to prepare? That would be a lot of energy."

"And there is another bad thing about books, that is, it is very troublesome to destroy. After all, ordinary books are not small, and it takes more time to destroy them. Once the destruction is not thorough, we can still buy books to compare them with these things."

"But the specially compiled password book is different. This thing is not much bigger. A small book is not only easy to destroy but also easy to hide. Once it is destroyed, we will not get any useful information even if we leave some corners."

"I guess that Japanese spies who can use books should only be used by Japanese spy teams with very high levels of confidentiality, and the books they use are not simply found."

"Because of the time we found the book, we also found some of the books, but we have not compared them until now. Moreover, in order to cover up this book, this group of Japanese spies still have a lot of books that are rare on the market."

"And until now, we don't dare to determine whether the one he burned was really a cryptobook or just confusing us, and his cryptobook is still in those piles of books."

After listening to Liu Zhenshan's analysis, Lin Mo was a little surprised. Of course, what was surprised was not the things he analyzed. After all, if Lin Mo knew this information, it would not be difficult to analyze it.

Lin Mo was surprised that it was Liu Zhenshan. You should know that the image shown by Liu Zhenshan these days is a bold and rough image, which is completely different from Liu Zhenshan who is very knowledgeable about things at this time.

Sure enough, I will never deceive me in my future generations. Those who can hang out in intelligence organizations and make a name for themselves are indeed not simple people.

Just like Liu Zhenshan in front of him, under the rough and generous outside, there is also a delicate heart hidden.

However, these things did not exceed Lin Mo's expectations. From the beginning, Lin Mo did not treat the people from the Military Intelligence Department as silly and sweet, but kept grasping the position and getting along with the other party carefully.

Now it seems that the situation Liu Zhenshan just explained to him should have been said by the other party that the Military Intelligence Department had the intention to recruit him.

However, Lin Mo didn't want to think about these situations anymore. After all, it is in his interest to complete this action perfectly. As for other things, let's wait until the action is over before thinking about it!

Thinking of this, Lin Mo thought about the news that Liu Zhenshan had just provided, looked around again, and found that the fundamental method of finding the password book, so he stopped the action in his hand.

Because there are too many materials placed here, but there are not many books, which obviously does not conform to what Liu Zhenshan said, using books as password books.

Seeing Lin Mo stopping, Liu Zhenshan was searching while asking in confusion: "Lin Mo, why did you stop?"

Hearing this, Lin Mo pointed at the surroundings with a wry smile and said, "Brother Liu, look at this situation, can we find the password book?"

Hearing this, Liu Zhenshan looked along the place Lin Mo pointed and saw that information was piled up everywhere.

Seeing this, Liu Zhenshan smiled bitterly, stopped the movement in his hand, and asked, "What should we do now?"

Hearing this question, Lin Mo thought for a while and said, "We'd better not search now. When the truck comes, take these things away and let you who are responsible for searching this thing to have a headache!"

"Uh...I'm the person who is usually responsible for searching."

Hearing this, Lin Mo was stunned at first, feeling that he had done this, and he was a little embarrassed. However, when he thought about finding a password book, he had already given it to the Military Intelligence Department, and his face suddenly showed a look of gloating.

Looking at Lin Mo who was gloating and looking at the piles of information, Liu Zhenshan also felt a headache.
Chapter completed!