"This Zhiyuanyou, the matter of cotton-iron cooperation has not been completed, so he sent me another job, this is for fear that I will be idle."

In Zhang's house, when he learned the news from the telegram that Cheng Nuo asked him to make a move, Zhang Jian couldn't help but brush his beard, although he was complaining, the smile on his face had already betrayed his true thoughts.

Huang Yanpei, who was accompanying him, didn't say it thoroughly, and deliberately joked: "In this way, it seems that Brother Zhang, you are indeed busy, or I will go to talk to the person surnamed Lu, maybe you can sell me three points of thin noodles, and after the incident, I just went to Beijing to find Zhiyuan to drink two cups." ”

Zhang Jian leaned over and asked curiously: "What, what are you doing in Beijing?" I guess I'm also interested in industry. ”

Huang Yanpei smiled and shook his head: "Industry? Of course, it is impossible, my ideal is in the education industry, for the time being, I can't spare the energy to do anything else, and I went to Beijing as a representative of the Jiangsu Education Association, and Peking University and Nanjing Higher Normal Jinan School organized the China New Education Advancement Society, and was busy with vocational education. ”

Zhang Jian suddenly realized: "No wonder, a while ago you asked about the work-study society in France, it should be related to this matter, right?" ”

Huang Yanpei paused for a moment and said with emotion: "Thinking back carefully in the past two years, what Zhiyuan has done has been something that the older generation of us have spent decades on, and we may not be able to do it. ”

Zhang Jian agreed: "Indeed, think about that Krupp steel, and look at this chemical product, especially this radio broadcast, what no foreigner can make, we actually took it out, and it was unimaginable before, that is, Zhiyuan." ”

Speaking of this, Huang Yanpei suddenly put away his smile: "Speaking of which, then Lu Yongxiang is Duan Qirui's person after all, let's still be cautious and try to avoid-for-tat confrontation with him, if it's really inconvenient here, I can do it for me, I'm still more interested in those three little guys." ”

Zhang Jian sighed and said: "If the radio aspect is left alone, over time, the domestic market will definitely be occupied by foreign capital, and hundreds of millions of dollars will be lost in the long run. ”

"The international radio industry is booming, and neighboring Japan has also launched international radio communication business, in view of this, in order to prevent foreign troubles, restore sovereignty and publicize the national news, the establishment of radio is not to be delayed, originally we were helpless, now Zhiyuan has taken the lead, we must support behind." Huang Yanpei stood up and said seriously.

The two looked at each other, and both agreed on this.

Originally, Zhang Jian was an important member of the Beiyang government, a predecessor of Zhang Guogan, and served as the chief minister of agriculture and commerce, and had a certain prestige within the government.

As for Huang Yanpei, because he has been busy with vocational education in the education sector, he also has a high reputation in society, and it is precisely because of this that he was also hired as the director of education a few years later.

With these two people coming forward, plus Lu Yongxiang, the envoy of the Songhu Protectors, he couldn't find anything in these ore radios and radios, and there was pressure from public opinion, so he hurriedly borrowed the slope to get off the donkey, and without saying a word of politeness, he directly released the people.

"What...... What, is this what Professor Cheng asked two gentlemen to rescue us? True...... Is it really Professor Cheng? As soon as he came out of the detention room, Zhang Yulin excitedly held Zhang Jian's hand, and in addition to the huge surprise, he seemed a little incoherent: "Cheng ...... A big man like Professor Cheng still cares about us. ”

Zhang Jian patted the young man on the shoulder, and pretended to be angry: "To this extent, in addition to Professor Cheng Nuo, is there a second Professor Cheng?" But then again, although Zhiyuan wants to rescue you, it is me and Mr. Huang who really make the shot, shouldn't we thank us! ”

Zhang Yulin was suddenly a little embarrassed, and stammered: "No...... I didn't mean that, but I just thought that it was Professor Cheng, and I ...... I don't know what to say, and I, along with the other two partners, are very grateful to the two gentlemen......"

Huang Yanpei couldn't stand it anymore, and while checking the condition of the other two young people, he said with relief: "Okay, okay, the children have also suffered a lot, let's go out quickly, the house is so damp that it can drip water, you have to wash it well when you go back, as for Zhiyuan...... You'll have a chance to see each other later. ”

Zhang Yulin originally wanted to say something here, but he just came to the door, looked up against the huge sun, and under the strong light, a huge feeling of discomfort enveloped his heart.

"Oh, this little guy, just came out of the dark place, walked to this bright place suddenly, and almost forgot about this stubble, Ren Zhi (Huang Yanpei) hurriedly took a hand to help him." Zhang Jian saw that the situation was not good, and hurriedly supported him.

"Hey, the way of the world." Huang Yanpei sighed and hurriedly stepped forward to help.

Fortunately, it was just some discomfort, and after a short rest, Zhang Yulin recovered, and after a few words of thanks, he finally set foot on the way home.

The news of the student's release spread quickly, and most of the people who were concerned about the matter breathed a sigh of relief, rejoiced at this hard-won victory, and spoke out in the major media to congratulate them.

Especially in Central Park, where the "National" radio is set up, it is crowded with crowds of people who come to celebrate, and they start queuing before dawn.

Even so, there was not even a place to put a foot within 100 meters, and even if it was cloudy and raining, some people insisted on listening to the radio.

When the weather is fine and the signal is good, the content of the broadcast is clear and loud, and the listeners who arrive are very excited, and all kinds of voices of long live are heard in the excitement.

From "Long Live the Nation" to "Long Live the Radio", and finally converged into "Long Live China", and there was even some "Long Live Professor Cheng" in the middle, and the scene was extremely hot.

In order to increase sales, the intermediate paper media even opened a special column called "National Radio Program Preview", which was specially used to inform the program of "National Broadcasting" the next day.

In the Academy of Sciences, Cheng Nuo was listening to his subordinates report on the radio.

"At present, our radio has occupied all the places where people gather in Sijiu City, even if a small number of locations are remote, but because of our unique broadcast, the flow of people in these areas has increased greatly, and the transmission effect is extraordinary." Jiang Jiang Zuo opened the report in his hand and read.

"Very good, but our ore radio is too simple after all, if you want to improve our communication effect, you still need a special radio, and you may have to work hard for Mr. Tesla and our comrades from the Institute of Applied Engineering." Cheng Nuo nodded and looked at Tesla.

In order to improve the listening quality, the radios used now have an amplification circuit at the front end, and the signal received by the antenna is amplified and then selected and filtered, and the amplification circuit can only work by relying on the power supply.

There is no amplification circuit in the ore radio, and the current converted into electromagnetic waves by the antenna can fully ensure the operation of the equipment.

Just like taking water from a river, you can use a pump, the water pumped out is fast and fierce, or you can use a water wheel, although the efficiency is a little lower, but it can still achieve the effect of taking water, and there is no need to use external energy.

Despite all the benefits of the ore radio, it is this simplicity that determines that its ceiling is not very high.

After all, the energy of the radio waves cruising in the air is limited, and the current and voltage in the detector circuit can almost be described as weak, so the volume of the ore radio cannot be very loud.

To put it bluntly, the ore radio built by Cheng Nuo in a densely populated place can be heard clearly by a circle of people around, and the peripheral ones are either joining in the fun or relying on word of mouth, and the effect is very limited.

That is, Cheng Nuo temporarily pulled a group of people and developed a loudspeaker with a large impedance, even so, it can't leave the antenna, otherwise it will be full of noise.

"Although I don't know much about radio, I still have a general understanding of the principles of spark transmitters and ore radios, especially spark transmitters, which are congenitally disadvantaged to concentrate power on one frequency to transmit.

The generation of each spark will radiate energy outward in a very wide frequency band, which is a serious waste of frequency bands, and if we want to continue to study in the radio field in the future, then the problem that the carrier cannot be adjusted also needs to be solved. After learning about the situation from his subordinates, Cheng Nuo said.

Jiang Jiang Zuo hesitated for a moment and asked tentatively: "In other words, should we completely abandon the research of spark transmitters in the technology behind us?" ”

"No, the spark transmitter still needs to be studied, it's just that both sides need to adjust their tracks." Cheng Nuo shook his head, got up from the chair and came to the blackboard in the back, and scribbled on it:

"The spark transmitter contains a high-voltage power supply, which continuously charges a capacitor, and the voltage at both ends of the capacitor rises rapidly until it reaches the breakdown voltage of the spark gap, and the high voltage of tens of thousands of volts is converted into a current pulse to another circuit segment......

The high power and ultra-wideband brought by it are not all shortcomings, if you think about the problem from a different angle, adjusting the track is its biggest eye. ”

After that, Cheng Nuo put his expectant eyes below, hoping that the people below could give him a satisfactory answer.

It's a pity that this is too out-of-the-box thinking, making it difficult for everyone to keep up, when Cheng Nuo looked at them, he either lowered his head and didn't dare to look at each other, or shook his head, indicating that he was still thinking, even if it was the leading Tesla, his brows were tightly locked.

Sighing secretly, Cheng Nuo decided to solve the puzzle by himself: "If you put this machine in electronic countermeasures, then it will become a significant advantage, under multi-band interference, what message can the enemy receive?" ”

Thinking of the spark transmitter and ore radio at hand, Cheng Nuo suddenly felt a little like laughing, one was launched with the momentum of "sweeping thousands of troops", and the other was received back with the heart of "embracing all rivers", a proper Wolong and Phoenix Chick.

However, because of this, the combination of the two can be used to achieve miraculous achievements on the battlefield of the First World War, and the relationship between the two sides can continue to be closer later, and it is not impossible to create remote control toys, but this is naturally a later story.

"That's a good idea!" Jiang Jiang Zuo quickly cleared his mind and said excitedly: "In this way, when we pull out this radio jammer on the battlefield, let the enemy become deaf and blind, and we will definitely be able to take them by surprise and attack them unprepared!" ”

Cheng Nuo took a slow breath and said with hot tea: "The idea is such an idea, even if we don't do it now, but we usually have to pay attention to this aspect, and we can make as much results as possible, but there is one thing you should pay attention to." ”

Jiang Jiang Zuo asked, "What?" ”

Cheng Nuo instructed: "That is secrecy, this thing is information warfare to put it bluntly, if the enemy is prepared in advance, then it is difficult to say the results." ”

After listening to this, Tesla next to him nodded seriously, and then asked, "Then what should we do next?" ”

Cheng Nuo thought about it and said seriously: "First, take out the triode technology we have previously researched and put it into use, and the future radio technology will be in this regard, on this basis, we will develop radios and transmitters with more accurate frequency and more delicate volume, and once successful, we will immediately apply for a patent;

Second, the research, production, and assembly of the equipment must be completed in the concession, and at the same time, we will be brought in to join the leather bag companies we have set up in foreign countries, so that some public fools will not hit us with their ideas.

Third, we should set up broadcasting equipment as soon as possible, set up our broadcasting station, and at the same time adjust the original one-hour trial broadcast time to two hours, so as to enrich our broadcasting content......

In the era of warlords, many of the work that Cheng Nuo wanted to do were restricted, especially in radio, limiting all supplies related to radio to military use, and all countries regarded the materials and parts used as contraband, and were forced to have no choice but to take risks and engage in all kinds of smuggling.

Nowadays, the development gap of the big guys is not big, and the understanding of this is not deep enough in foreign countries, and it is far from the same in China, and there is still a certain space for maneuvering, so this is also the reason why Cheng Nuo chose to enter the radio in a big way at this time.

If you miss this village, you really don't have this store.

Sure enough, those efforts worked.

After Zaitao and his entourage arrived in Europe with a kilowatt transmitter, they transmitted the local news and the situation of the students through the radio in a timely manner, and transmitted the electricity from Paris to Shanghai every day, and the power generation time was 10 o'clock at night in Europe and 6 o'clock in the morning in Shanghai, and the people of the two places received the information almost simultaneously.

After World War I, I was already more concerned about the content of the negotiations, but this time I quickly learned about the local news with the radio, and in an instant, the people's attention to radio was raised to a higher level, and the form of greeting quietly changed.

It turned out to be: "Have you eaten?" ”

Now it's "Did you listen to the radio?" ”

(End of chapter)