Of course, Mandel, who was in the spacecraft at this time, finally began to become unable to sit still. He immediately asked the deputies around him:
"What's going on? What's happening around us? Is this a plasma cloud? There don't seem to be any advanced intelligent creatures left on the earth around? Where did this damn plasma cloud come from? Who can answer me?"
However, all his subordinates were unable to answer his words at this time, because they also felt helpless. In fact, that's when they realized the weird things appearing around them were plasma clouds. They were ready to be completely destroyed when one of the deputies said to Mandel:
"Sir Mandalay, I'm afraid we can't go back. Send a message to Chief Wedel as soon as possible to tell him that there are more than just lower intelligent creatures here, Chief Mandalay. Please make a decision as soon as possible, otherwise there will be no time to even send the message. "
Mandel thought about it carefully and said:
"Okay, you organize communications as soon as possible. I want to contact Chief Wedel as soon as possible."
…
But what they never expected was that Zhang Desen, who was directing operations on the ground, also had an idea at this time. He immediately said to the people around him:
"Everyone listens to the order and immediately starts the electromagnetic interference program without distinction in the entire frequency domain at the same time."
The operator immediately obeyed the order and started the electromagnetic interference program without distinction in the entire frequency domain. However, Li Longfang had already finished explaining to General Feng Yucai at this time. What was the plasma weapon that he had to explain before? But when I heard Zhang Desen say this, I immediately asked Zhang Desen:
"After the captain activates the full-frequency indiscriminate electronic interference, won't we also suffer disaster? Captain, it's better to think twice."
Zhang Desen immediately said decisively:
"Don't ask so many questions all the time, just implement it."
When Li Longfang heard what Zhang Desen said, he knew that Zhang Desen had completely made up his mind and there was nothing more to say.
Electronic jamming is a radio wave disruption measure taken to cause enemy electronic equipment and systems to lose or reduce their effectiveness. It is an integral part of electronic countermeasures. The purpose is to weaken or destroy the enemy's ability to use various electronic equipment and systems to conduct battlefield reconnaissance, combat command, communications, and weapons control and guidance, so as to create favorable conditions for concealing one's own intentions and improving the survivability of one's own aircraft and ships.
Electronic jamming generally does not cause permanent damage to the jamming target. It only causes partial or total loss of the jamming target's combat capabilities during the duration of the jamming operation. Once the interference is over, the jamming target's combat capabilities can be restored.
The basic technology of electronic interference is to create electromagnetic interference signals so that they enter the receiver of enemy electronic equipment at the same time as the useful signal. When the jamming signal is strong enough and the enemy receiver cannot extract the required information from the received signal, electronic jamming works.
Electronic jamming technology jams enemy receivers rather than transmitters. For jamming to be effective, the jamming signal must be able to enter the enemy receiver—antenna, filter, processing threshold, etc.
In other words, when determining the jamming plan, the distance and direction between the jamming signal transmitter and the enemy receiver must be considered, as well as the possible effects of the jamming signal pattern on enemy electronic equipment. Only in this way can the effectiveness of interference be ensured.
Due to the open nature of radio signal propagation. Radar, communication and other receivers receive useful signals and other signals at the same time, thus causing interference to the signals to be received.
As intentional electronic interference, in order to achieve the desired effect, that is, to effectively achieve interference, the interfering signal must be well received by the receiver and have an impact.
But usually all receivers are designed for the signals they want to receive, that is, the receiver has the best reception performance for the signals it wants to receive.
Therefore, in order for the interference signal to effectively affect the receiver, the interference signal propagating to the receiver should have the basic conditions to affect the interference receiving system. This is the condition for effective interference. The basic conditions for effective interference include the following:
The first is frequency domain coverage:
It can be seen from the signal receiving process that the receiver has a strong ability to suppress signals outside the useful signal frequency band.
force, an interfering signal only has the ability to fall into the receiver at the same time as the signal to be received.
Only the frequency domain characteristics within the band can be received by the receiver.
In general, if the total energy or combined amplitude entering the receiver is not particularly large, they will be subjected to the same processing in the linear part of the receiver, such as amplification, filtering, and transformation. Interfering signals entering the receiving frequency band of the receiver will disrupt signal reception.
Therefore, the frequency domain characteristics of the interference signal should first be that its frequency components can fall into the receiver passband. Normally, in order to take into account the influence of frequency aiming error, the bandwidth of the jamming signal is larger than the receiver passband. In this case, the out-of-band loss of the jammer needs to be taken into account in the total output power of the jammer.
Next is airspace coverage:
Airspace coverage reflects the spatial distribution conditions of the electromagnetic field intensity relative to the interference object, which means that the electromagnetic radiation energy of the interference is concentrated at the spatial location where the interference receiving antenna is located.
There are usually two ways to achieve this condition. One is to cover the main beam of the interference transmitting antenna with the spatial location of the interference receiving antenna, so that enough interference electromagnetic energy can be concentrated in the expected interference direction; The method is to place the interference transmitter near the interference antenna to reduce the loss caused by long-distance propagation and place it in the center of strong interference. In this case, a non-directional antenna can be used.
When interfering with a base radar that shares a traditional transceiver antenna, the direction of the radar can be known by measuring the direction of its transmitted signal. Therefore, the interference main beam can be pointed to the radar more accurately, thereby avoiding unnecessary loss of energy in other airspace directions. .
However, when interfering with many tactical communication systems, it is usually impossible or impossible to accurately know the location of the receiver. Therefore, the jamming transmitting antenna usually uses a wide beam. The airspace energy loss caused by this must be taken into account in the power design.
For tasks that require jamming multiple targets in different directions, wide jamming beams were initially used. With the development of transmitting antenna technology, the adoption of multi-beam technology allows the jammer to concentrate energy in several determined directions, greatly improving Airspace utilization of transmit power.
…
However, because Zhang Desen quickly implemented full-frequency jamming, all communications with the spacecraft with a diameter of 50 meters immediately failed. The operators immediately said to Mandel:
"Report to Commander Mandel that all our communications have been interrupted. The other party has implemented electronic jamming in the entire frequency domain. No information can be transmitted without any signal. What should we do next? Please give instructions, sir."
Looking at the facts in front of him, Mandel had no choice but to sit down and said:
"Okay, brothers. I'm afraid we have no way out of the current predicament. Is there any other way for everyone to make our spaceship perish together with theirs?"
But what Mandel answered was endless silence from everyone. At this time, the entire spacecraft became lifeless due to excessive silence. So one of Mandel's lieutenants said to Mandel:
"Sir Mandel, since we only paid attention to those primitive humans before, we did not monitor the power of the advanced intelligent civilization that suddenly appeared on the planet nearby. So where exactly are they? There is no way to know, and all our current instruments are messed up, so..."
After hearing this, Mandel waved his hand feebly to interrupt him. Then he said:
"Brothers, I'm sorry for bringing everyone to this point. But it's a pity that I didn't see our new home being rebuilt. I think this is probably everyone's final regret."
After Mandel said this, everyone remained silent, but they felt the same.
When Mandel saw everyone like this, he continued:
"But I believe that even if only Mamba's chief is left, he will definitely lead our people towards the light. In the end, our people's homeland will be re-established. Let us watch our people rebuild their home in the void. "
And these wandering aliens, after hearing these words from their commander Mandel. The outstretched hands clasped together, and Chief Mandel joined in. Soon after, the ship
The disc-shaped space UFO with a diameter of 50 meters was completely destroyed by plasma weapons and exploded.
Finally this
The wreckage of a UFO also fell to the ground. Of course, Zhang Desen and his team will not give up on the recovery of this UFO. Soon the United Family Team completed the recovery of the UFO, and the bodies of all the members on it were also recovered and preserved one by one.
However, after the battle, good news came through radio contact from the United Industrial Park in Xidu. It turns out that after a period of hard work, the United Industrial Park has successfully copied the Maxim machine gun. The Maxim machine gun of the United Generals finally no longer has to rely entirely on the inventory in the weapons arsenal left by the super-ancient humans.
And the second good news is that the United Industrial Park has successfully manufactured a truck of its own. This is the first truck produced by the United Industrial Park.
After Zhang Desen carefully inquired about all the performance of this truck, he found that this truck was surprisingly consistent with the first Jiefang truck produced by his original universe in terms of performance and appearance. I have to say that this is really in line with Zhang Desheng's wishes, but Zhang Desheng definitely can't call it the same brand, so Zhang Desheng also needs to consider its name.
The Jiefang brand automobile was successfully trial-produced at Changchun First Automobile Manufacturing Plant on July 13, 1956. The world's first car was born in 1885. Before liberation, more than 130 types of cars of different brands were driving on my country's roads, just like the "International Automobile Exhibition", but none of them were made in my country. The advent of the Jiefang brand automobile ended the history of my country being unable to produce automobiles.
The first batch of Jiefang brand cars to roll off the production line is called the CA10. This is a car based on the Soviet Gis 150. It weighs 3,900 kilograms, is equipped with a 90-horsepower, four-stroke six-cylinder engine, and has a load capacity of 4 tons, with a maximum speed of 65 kilometers per hour. After improvements, it is more suitable for my country's road conditions and the needs of large-scale construction.
Jiefang brand vehicles have a solid structure and long service life. However, starting from July 13, 1956, the old Jiefang Car was produced for 30 years, reflecting the single structure of my country's automobile products. In the past, one out of every two Chinese cars running on the land of China was Jiefang brand. In the 1950s, "Liberation" was the pride of the employees of Changchun No. 1 Automobile Manufacturing Plant! But it was "old". In 1980, in the wasteland on the outskirts of Changchun, tens of thousands of unsaleable Jiefang vehicles were lined up in a long queue. On September 29, 1986, the 1,281,502th "Jiefang" car rolled off the assembly line, and the "Old Jiefang" that had been produced for 32 years was finally discontinued. At the end of the year, Changchun No. 1 Automobile Manufacturing Plant successfully developed the 141 new car, finally breaking the "30-year consistent production" situation. The new "liberation" has gained a foothold in the market! In September 1987, the new "Jiefang" 141 was rated as a first-class product in the national competition; in the international bidding, it won three prizes in a row. Changchun FAW, an old company, has entered the product series development stage again.
The changes of "FAW" are the epitome of the development of my country's automobile industry. After more than ten years of reform, my country's automobile industry has formed a new management system, the product structure has become increasingly reasonable, and replacement has accelerated. Chinese automobiles have begun to enter the international market in large quantities, and the automobile industry has become an important pillar industry of my country's national economy. Since the founding of the People's Republic of China, our country has produced more than 10,000 automobiles of various types.
The early Jiefang brand cars include CA10, CA10B, CA10C and other models. They are rear-axle driven and have a 6-cylinder in-line water-cooled four-stroke gasoline engine with a maximum power of 70 kilowatts and a load capacity of 4 tons. They can tow a 4.5-ton trailer and have a maximum speed of 75 kilometers. / hour, fuel consumption is 29 liters per 100 kilometers. Later, improved CA15 models (including CA15K, CA15J, etc.) were produced, which were similar in appearance to CA10, with a load capacity of 5 tons, engine power of 85 kW, and a maximum speed of 80 km/h. A total of 1.02 million vehicles were produced from 1956 to 1986. Designed in 1988, the second-generation CA14I has a vehicle load of 5 tons and can tow a 6-ton trailer. The maximum power is 99 kilowatts, the maximum speed is 90 kilometers per hour, and the fuel consumption is 22.5 liters per 100 kilometers. The vehicle has excellent performance and reliability, and its fuel economy and power have reached the domestic advanced level. Its overhaul mileage is twice that of the CA10, reaching more than 200,000 kilometers. It can be modified into a variety of deformed vehicles. In addition, Jiefang brand vehicles also include CA34I dump trucks, CA93I semi-trailers and other varieties.
