The banging on the door gradually became less frequent. It seemed that the group of zombies had temporarily shifted their target, and the three of them were temporarily safe.
After her nerves relaxed, her muscles ached and felt empty. Jing Qiongshuang ran so far carrying Wo Gua, an oversized Roujiamo, and deeply understood the experience of Wo Gua, which has so much meat that not even a pound or a cent is wasted. Gua himself didn't know that a woman was carrying him on his back, but he just looked at his blood-covered hands and screamed "Yeah".
No matter how ladylike a female programmer is, she will reveal her identity as soon as she starts programming. She will instinctively push her hair up on her forehead, exposing her big forehead. The main reason is that the CPU needs good heat dissipation when it operates at high speed.
There are only a few CPUs left in Wogua and now this bad news has happened. I don’t know anything else, but I definitely can’t be a programmer.
The most obvious advantage of not being a programmer is that you don’t have to be killed to sacrifice to the heaven. If Wo Gua wants to sacrifice to the heaven, the food he uses will definitely not be pork belly, but fat. This mouthful is a bit addictive. Drink champagne with nodules. Let’s find someone else to offer sacrifices to on this day.
Li Lvyan sat down slowly against the door. Jing Qiongshuang's elbow had a deep scar visible to the bone. This was probably caused by something sharp when she jumped out of the car. However, she has not said a word until now. She looks like this Also like black glasses.
The nest is by far the easiest thing to do. Sure enough, ostriches have the easiest time in the world of animals. When something big happens, all you need is a bird head and a basin of sand.
However, this topic can solve an eternal problem: Why do Africans run so fast? Because the CPU heat dissipation needs to be vented through the vents. More importantly, if you don't change your feet, the soles of your feet will be burned by the sand.
Opening the backpack, he found that there were still so many bullets. At this moment, Wo Gua regretted a little: If he had known earlier, he would have let those turtles run away and fight monsters. What he felt bad about was that box of bullets that had not been strategically moved together. bullet.
The scene was a little quiet for a while. Li Lvyan took a sip of water and found that both of them were in a sorry state. He was not much better now. At this time, a question came to everyone's mind: Why did the man control the walking corpse? Do you need to change the direction of the track? Just to make the target die directly? Or do you think that even the walking zombies can't kill them, and it is still possible for a group of people to escape?
The lights in the infirmary are relatively dim. A few people have been struggling outside for so long. This is the most ideal haven. Moreover, the group of zombies is obviously controlled and attacked by someone. Since the person hiding in the dark has just We have already used walking corpses to search this place, so for the time being, this infirmary will not become the next target of attack so quickly.
It also means it's time to take a break.
No one took the initiative to mention the rotation, because without exception, everyone is exhausted now, but Wo Gua is an exception. He slept for more than an hour just now, and he was carried on his back for such a long time. Not to mention he was very active, at least he was not. He wasn't feeling sleepy, but when he saw Wo Gua looking around with his big eyes open, he thought he had hit the muzzle of a gun.
"Since you're not sleepy, look at me, I need to rest."
Jing Qiongshuang said nothing, picked a hospital bed and slept with her backpack on her head first. Li Lvyan glanced at Wo Gua, patted his shoulder and said, "Leave it to you."
"I--"
However, falling asleep always happened so quickly that Wo Gua couldn't tell the difference. The two of them had already fallen asleep. Wo Gua touched his belly bitterly, took out a bag of compressed biscuits and started eating.
"Tick tock—tick tock—"
There is no time here, but time has a special meaning here.
I don't know how long it took, but Li Green Ant was woken up by the sound of mice digging holes, but he stretched himself contentedly: This sleep was indeed comfortable, and he hadn't been so comfortable for a long time since he went to the ground.
Jing Qiongshuang's nerves were always on high alert. After a brief period of sleepiness, she regained her energy. She squeezed her sore arms and saw Wo Gua sticking out her butt and digging holes in the wall. She didn't know what she was doing.
"Wogua? How long has it been?"
Wo Gua didn't even look back, "How do I know? I only know that this handsome boy's stomach has growled seven or eight times during this period. This handsome boy has been holding back from eating, and then he heard something moving inside the wall. Oh no!
It’s been a long time since I took out this little money.”
Several hours have passed.
The two of them took a look at the wall, one on the left and the other on the right. They saw that the originally smooth wall had indeed been dug out by a large hole. They didn't know what the wall was made of, but it was quite round. What surprised Li Lvyan was that,
He originally thought that this would be an underground fortress renovated by the J Army based on a Loulan ruins in the II period, but he did not expect that when the wall was dug out, there were no tomb bricks inside, only ordinary mortar.
Strange, why is it different from what I thought?
After struggling for a long time, Wo Gua finally took out a guy from the crack in the wall and blew away the loose soil on it. "Okay, this is it. It made a lot of noise. Now it's done!"
That so-called "thing" is nothing else but a radio station.
Electric - Taiwan??
Why hide in the cracks in the wall?
There are many different types of radio stations in countries M, E, SL, C, J, D, and Italy in II, such as individual and vehicle-mounted, shortwave and longwave, etc. The most famous one is M in II
The Army's "BC1000 Radio" and the J Army's "Type 94 Radio No. 6".
Communication tools are indispensable both in wartime and in peacetime today.
Tools, in II, not all troops of the J Army could be equipped with radios.
In 1936, the Type 94 Radio Station No. 6 was developed by the J Army for the infantry of the Signal Team, so that 1 or 2 people could operate the wireless KHz while moving - this type of radio sent out telegrams as shortwave, from the radio's transmitter
After the antenna transmits, frequencies in the same band can be received. Technically speaking, shortwave cannot be compared with medium wave. Moreover, the propagation of shortwave is not as stable as medium wave due to changes in the ionosphere. However, the technology at that time was limited and it was possible to send telegrams.
It's already pretty good with intercepting telegrams.
Jing Qiongshuang and Li Lvyan looked at each other, not knowing what they meant. There was also a note wrapped in oilcloth on the radio station. The cover was also written in Japanese. Just when Li Lvyan wanted to look at it first, Wo Guaomao got there first.
When I started, it turned out that after so many years, the notebook had been gnawed clean by insects. A rough pinch of the notebook turned into a pile of ashes.
"This - hehe - you have also seen - this thing is not strong -"
Wo Gua smiled coquettishly, knowing that he had done something bad with good intentions, so he shrank his neck and stopped talking.
Although the reason why the corpse was raised before was not found, Wo Gua felt deep in his heart that if he hadn't smacked his lips at the big-headed ghost, he wouldn't have woken up the sleeping big girl. Now he just wants to put that
The so-called "Sleeping Beauty" who was waiting to be kissed awake by the prince pulled out her intestines, tied a bow and then quickly walked around its duodenum to comfort her lost IQ and lost sad youth.
, it was because of that big-headed ghost that his current prestige in the team fell directly from the moon into the five-meter-high cesspool he blasted out when he was a child, and disappeared forever with the rolling water of the Yangtze River eastward.
The only evidence that could point out the purpose of the existence of this radio station was crushed into a pile of ashes by Wo Gua. Li Lvyan rubbed the ashes and began to look for a breakthrough from the radio station itself with some helplessness.
This radio is not large in scale. It looks like a small suitcase. The left side of the box is the power supply. There is no more common vibrator power supply. The key button appears just below the power switch. The remaining parts of the key are located under the front panel.
, consisting of a simple two-tube receiver and a single-tube transmitter, placed in a separate box, using a battery as the main power source and feeding a vibrator as a power source to generate the necessary high voltage. The receiver consists of a regenerative
It consists of a detector and a single-stage audio amplifier. The transmitter is a high-power crystal-controlled oscillator connected directly to a simple coil.
Seeing that Li Lvyi had been studying for a long time without saying a word, Wo Gua was a little bit unable to hold back as he poked and prodded here and there. "Did you see anything?"
Li Luyi pondered for a while, "I can't see much." This obviously meant that he saw something.
"What is this light bulb used for?" Wogua touched the light bulb of the indicator light with his fat hand.
"It has the same function as the hard disk indicator light on the computer. When the button switch is pressed and released momentarily, the battery current passes through the circuit to light up or extinguish the small light bulb, and at the same time generates a current pulse signal. The light bulb also has a current limiter and a bleed resistor.
effect."
Jing Qiongshuang looked at Li Lvyan: She only saw that the production date of this radio station should be the II period, but because she didn't have the tools at hand, she couldn't determine which country it was produced in. But Li Lvyan seemed to have discovered that,
More than yourself.
Wo Gua came to the spirit of "How much is not more?" He had a kind of blind trust in Li Luyi.
Other sisters know everything, but you say she is simple, and I know nothing, and you say I am from the village.
As if he was sorting out his words, Li Lvyan pondered for a while, "The transmitter has few tubes and low power output, which makes it have low power consumption. This is an important indicator of a secret radio station. It means that this radio station exists independently from this underground fortress.
Yes, at least it definitely does not operate with all the radio stations in this fortress."
"For reliability reasons, batteries are generally used as the main power source for radios. Mains power is not always available and can disappear at any time. In many cases, agents have to operate in rural areas where the power grid does not exist. So despite this
Although radio stations have tried to save relatively much electricity, they still need to carry at least one or even two car batteries with them. In addition, the batteries need to be charged more frequently, which poses considerable risks to military operations. However, the use of batteries also poses a huge threat to the military.
Defense is provided using ordinary reconnaissance techniques. Directional teams will often cut the power to an area while listening for what they think may be a covert transmitter. If the transmission stop coincides with the power cut, they can limit their search to that city.
A specific area, but this radio station has escaped so many searches intact. This person's position in this underground fortress itself is definitely not low."
Li Luyi paused for a while, but Jing Qiongshuang had already keenly figured out the subtext that Li Luyi wanted to express from this paragraph: The person who owns this radio may have the same position and views as everyone in this underground fortress.
is inconsistent, otherwise why would you go to great lengths to make this radio station not only independent and a secret radio station, but also hidden in a crack in the wall? More importantly, the radio signal is easily intercepted, so if
This radio station has escaped repeated investigations by the J army, which itself illustrates an important issue——
People who own radio stations have high official positions.
After Jing Qiongshuang understood Li Lvyan's subtext, her pupils suddenly shrank and she stared at Wo Gua. The reason was for no other reason than that she now knew that she had been under the covers just now.
What was written in the notebook that was crushed into ashes?
Li Lvyan didn't seem surprised at all, as if he had thought of this from the beginning.
When Wo Gua saw that the two people looked at him differently, he immediately tightened his neck and said, "What are you doing? What are you doing? I am a handsome guy who sells his body but not his art. He can be humiliated but not killed."
The pretty guy is long, the pretty guy is short, and the pretty guy doesn’t care when he gets hard.
A handsome guy buys me foundation, and I let him wear it to the end.
The difference between the radio stations that sent telegraphs in the II era and the radio stations that broadcast now is that the radio station needs to broadcast the sound, so it must have a microphone and a modulator to modulate the sound signal into a radio signal, etc., and the radio station only needs to send signals, not
Need to receive signal.
The transmitter sends dot-and-dashes signals generated by a simple machine. It does not require microphones and other equipment, and the transmitter is two-way, both sending and receiving. Moreover, the transmitter can also print dot-and-dashes signals onto paper tape.
The auxiliary equipment on the radio station does not have.
There were also some other types of radio stations. The radio stations at that time mainly relied on radio waves to propagate signals, which were characterized by almost no directionality and a slow propagation speed. Because the radio stations at that time did not have directionality, they basically
Similar to today's urban radio stations, its transmission and reception method is not point-to-point, but face-to-face. The problem caused by this method is very obvious, that is, anyone can receive the signal you send. Even as long as you put your own radio
Band, tune to a band similar to that of the other party's radio station, and you will be able to receive the signal they send. But it is not certain whether you can decipher it, because most of the time the enemy does not use plain text to communicate. The so-called plain text means that according to the
The standard Morse code is sent. It is encrypted by a cipher machine, which involves the most important encryption part.
That's right, what was crushed by Wo Gua's slap was none other than the decoding book corresponding to the radio station. Whether it is receiving signals or sending signals, a decoding book is needed, and now people put the most important things into it.
It was put together with the radio station, and it was handed over to you, and it was crushed to pieces by Wo Gua??
Jing Qiongshuang now wanted to crush Wo Gua's head and kernels together to comfort her angry mood. But after seeing Wo Gua's cowardly appearance, she looked away from Wo Gua: Forget it.
There is not much to say about this living treasure.
When the telegraph operator received the telegram, what he received was not a string of words, but a series of symbols in different order. This is Morse code. The function of the code book is to allow the telegraph operator to combine this string of symbols with the code book.
Compare them to get the text. The function of the cipher machine is to scramble the letters represented by each symbol in the code book. This is the telegram encryption in the II period. It is called the double substitution cipher. Other encryption methods are also mixed in it.
Miscellaneous code words, such as boxes (referring to casualties or supplies), etc. Although the interceptor can decipher them by blind guessing, this method requires a very large amount of work, and the enemy often changes the code book regularly to prevent leakage of intelligence. Repeated blind guessing
The guessing method is undoubtedly very energy-consuming, and for cipher machines that adopt a double substitution cipher encryption method, such simple and crude blind guessing is basically impossible to decipher.
But if you know the working principle of the other party's cipher machine, you can know how the other party scrambles the symbols, so that you can easily compare and get the intelligence transmitted by the enemy. One of the most typical examples in II is that
It's the Enigma machine.
The Enigma machine uses the so-called compound substitution cipher, which mainly relies on its internal rotor for scrambling and encryption. Both the sender and the receiver must each have a cipher machine and set it up according to the same procedure.
Only the two sides can communicate. Each unit of the D Army has different settings for the Enigma machine, and it is almost impossible for the interceptor to decipher it, because there are almost tens of millions of possibilities.
Therefore, the Allied forces attach great importance to the research project of the Enigma machine in II. Because as long as the Enigma machine is thoroughly studied, the Allied forces can also obtain the intelligence of the D army just like the recipients of the D army. The Allies initially
In 1941, the actual machine of the D Army's military Enigma cipher machine was obtained. It was found by the E Navy on the captured D Army submarine U110. The Allies immediately organized personnel to crack and analyze it, and finally around 1943
After completing all the work. In addition to the transmission part mentioned above, combined with the knowledge of D Army's password encryption method, the Allies have been able to continuously obtain D Army intelligence since 1943. This is how the telegrams were intercepted.
Way.
During the war, when the Yamato went to Okinawa to conduct the so-called Tamato Special Offensive Operation, an M Army submarine discovered the Yamato. Perhaps due to overconfidence, the M Army submarine did not encrypt the telegram and directly sent it in plain text.
The Yamato's movements were sent to the headquarters. Since this telegram was not far from the Yamato when it was sent, it was also intercepted and learned by the Yamato. Then the Yamato believed that hiding the track was of no use, so it headed straight for Okinawa.
Death, this is one of the few examples of clear text telegrams in the war.
Just like a question that women often ask men: How would you feel if you lost me one day?
Answer: It’s like cooking without salt.
Question: You are so talented, do you mean to say that life would be boring without me?
Answer: No, I mean to buy another pack.
The question now is: What if Wogua crushes the decoding book that comes with the radio station?