Since the American counterparts have given such a big face, it can be seen that General Li is awesome, so the old teacher thought of this old boss and asked the old boss to see if there was anything strange about this matter.

General Li, who had worked on the secret front all his life, immediately discovered the suspicions inside, and he called the old instructors back and motioned them to do an experiment.

Therefore, this experiment gave later generations a definite definition of the method of reporting, and for the first time determined the significance of this subject to the entire espionage system at that time.

First of all, General Li first found a dispatcher, and according to the rules, sent the first 20 words of the first chapter of Chairman Mao's On Protracted War, and sent it three times at once, so that the old teacher could remember this radio sound.

Then there was another dispatcher, imitating the same thing as the messenger just now.

The old instructor on the front line in Changchun immediately heard the difference between the two radio waves, and I don't know what the difference is, in short, the old instructor concluded: There was an accident with the 202 radio station in Changchun City. There was a problem with this information, so he reported the information and General Li Kenong's suggestion to Mr. Lin.

Later, Mr. Lin kept the original siege plan unchanged, and added more troops to the defensive position of the 75th Division, and the entire liberation plan of Changchun was not disrupted.

Xu Blind and their old instructor was the one who did his best in this matter, so from then on, he focused on cultivating the characteristics of the students to report by themselves, and cultivated them to observe the different characteristics of each person's reporting, and this skill was also passed on to Xu Blind and Chen Lan.

After saying this, Instructor Chen Lan had completely calmed down. He returned to his old self, as if he was immersed in the time when he trained with Xu Blind.

I'm a little annoyed, it turns out that it's really this message sent by the blind man Xu, what is this blind man Xu doing? It wouldn't be that I woke up every morning and had nothing to do, assembled a transmitter by myself, and started playing radio.

I remembered the translated number. 23316239, what do you mean? Maybe Instructor Chen Lan will have some news here, so I asked him: "That, don't be blindly excited, instructor, maybe I just imitated the person's message, and it is possible that there is a mistake in imitation, in this way, do you know what the telegram I received means?" That is to say, if it is sent by Xu Blind, what does it mean? ”

The instructor wrote down this string of numbers on the paper, frowned, and said: "This kind of two-digit password in a group is indeed what we learned in the training class, but there are many permutations and combinations that he may have, but according to the current technology, it is not impossible to decipher this kind of code." But ....."

I hurriedly asked, "But what?" ”

"It's just that there is too little information, so people can't get started, the current technology of big data probability calculation, his premise is that you have to have a lot of data samples, now?"

As she spoke, she pointed to the paper on the table and said, "Just 8 numbers, God knows what they mean, maybe the original text of the message he encrypted is just a letter A." ”

I said in my heart, yes, there are some people who are obsessed with cryptography, for example, some people are idle to decipher the Da Vinci code, but this kind of decipherment is when you have enough information in your hand, and the current state is like giving you an English letter A for you to decipher, and you are tired and crazy, and you can't decipher anything.

I was still a little uneasy, and asked, "Are you sure that this person who sent the report is Xu Blind?" ”

Instructor Chen Lan said: "I still need to make sure that it is not him, so that you will stay in my house tonight, and tomorrow morning, you will take me to the top of the mountain, and I will listen to it from my own parents." ”

There was a bit of depression on this page, and I didn't fall asleep at all. I was lying on the sofa in the living room, almost all night without closing my eyes, there was Instructor Chen Lan living in the bedroom of the back room, think about it, just now he was holding a gun at my Tianling Gai, in this environment, it is estimated that the only one who can fall asleep is Chu Fatzi.

The next morning, as soon as I finished washing my face, I saw that the instructor was ready and was changing his boots, and I said that I would go back to the dormitory to get my semiconductors, Chen Lan said: "Use that guy of yours, I don't worry, we have a professional." ”

So he threw a canvas bag to me, I took it in my hand, quite heavy, about fifteen kilograms, I was helpless, who let the family be an instructor, so at 5 o'clock in the morning, I drank a little milk indiscriminately, and began to rush to the top of the mountain.

It may be that Instructor Chen Lan accidentally learned the whereabouts of her old lover, and she was in a hurry, and she was so windy that she wanted to leave me behind, so I had to carry about 15 kilograms of equipment all the way behind.

Half an hour later, we arrived at the platform at the top of the mountain, I looked at the vast world in the distance, and said in my heart Xu Blind, master, I am here to greet you, not honestly repair the TV in the village, it is already that field, not honest.

Instructor Chen Lan opened the canvas bag and took out a relatively advanced full-band radio wave receiver, this guy doesn't know how advanced it is compared to the semiconductor I made. She laid the machine flat on the ground, then began to set up the folded antenna, plugged in the external power supply, put on the headphones, and began to carefully tune the frequency.

He looked up and asked me, "When you received the radio waves that day, what time and what frequency band?" ”

I scratched my head, the time, it should be this meeting, about the frequency band, it's really hard to say, because that semiconductor is improved by Panzi, and the insulating paint of the entire rheostat has been stripped off, and the frequency band is chaotic, but Panzi said that in the morning, I adjusted the civilian band.

I told him that he was in the civilian band, and there was a hint of disappointment in his eyes, and he asked me as he adjusted the knob, "How is Xu doing now?" His work, or can't it be said? ”

I also feel helpless, it stands to reason that now I know that Xu Blind exists, only me and the K of spades, there should be no third person, and even Chu Fat Man thinks that Xu Blind is dead, and he was really sad for a while.

I didn't answer Chen Lan's question, just watched her adjust there, took out another earphone in the canvas bag, plugged it into the second earphone jack of the machine, closed my eyes, listened carefully, and according to the sound I heard yesterday morning, told Instructor Chen Lan to pay attention to it, don't miss it.

Sure enough, in less than 5 minutes, the sound of scraping the glass appeared in the headphones again, I waved my hand and asked the instructor not to adjust it anymore, and waited quietly, and sure enough, the sound of scraping the glass suddenly stopped.