This is a world where whoever has the final say is the biggest fist, and you can't estimate too much. When you estimate too much, your courage often disappears.

After inspecting the new training base, Gao Fei and Chiang Ching-kuo went to the radar station installed in Shapingba. Gao Fei wanted to see the installation and use of radar equipment provided by the Americans, because the ones who cooperated with him were his own left-behind office of the Chinese Expeditionary Force.

Technicians in the telecommunications department.

It was lunch time when Gao Fei arrived. Gao Fei did not inform the construction site, but instead climbed the mountain on foot. The radar stations were built in relatively high places. Radar is indeed very advanced for the Chinese army.

But for some international students studying in Europe, radar is not so mysterious. Radar is just an electronic device that uses microwave band electromagnetic waves to detect targets.

Relying on the transmitter to emit electromagnetic waves to irradiate the target and receive its echo, thereby obtaining the distance, distance change rate, orientation, height and other information from the target to the radar. The electromagnetic wave is the same as the sound wave. When encountering obstacles, it will reflect. The radar uses it.

This characteristic of electromagnetic waves works. Generally speaking, the shorter the wavelength, the better the propagation linearity and the stronger the reflection performance. Therefore, radar uses radio waves in the microwave band.

Gao Fei knew that in 1925, the United States had already begun to develop pulse-modulated radars that can measure ranging, and first used it to measure the height of the ionosphere. A report from the US Army in 1931 was obtained by the Joint Chiefs of Staff.

Approval, and a portion of the already stretched funds were taken out as research funds. Now it seems that this vision has indeed made great gains. It can be said that some European and American countries have basically started to develop pulse modulation radars for detection aircraft since the early 1930s until

In 1936, the United States developed a pulse radar for detecting aircraft with a distance of 40 kilometers and a resolution of 457 meters. Anti-Japanese Blood Sacrifice to Mountains and Rivers 677

Moreover, due to the urgent need for combat, radar technology has developed extremely rapidly. In terms of the frequency bands used, the pre-war devices and technologies could only reach tens of megahertz. In the early days of the war, Germany first developed a high-power three- and quadrupole electron tube 2c

The frequency is increased to more than 500 MHz. This data improvement not only improves the accuracy and accuracy of radar search and guidance aircraft, but also improves the performance of anti-aircraft gun control radar, giving anti-aircraft guns a higher hit rate.

In 1939, the British invented the power of three gigahertz, equipped with microwave radars using this magnetron on the ground and on the aircraft, giving the Allies the advantages in air combat and air-sea combat, but the British were in their own way.

One technology is strictly controlled, and even the United States has kept it confidential. The development of radar is purely for military needs, so it is carried out in a confidential state. In fact, almost at the same time, scientists from all countries have kept it confidential.

This work was carried out independently under the conditions of the situation. In 1941, the Soviet Union was the first to equip early warning radars on aircraft, but this became a so-called attempt and did not have the actual effective combat effectiveness of the itinerary.

The radar power of the US aid to China has exceeded 5 GHz, so the British have been shamelessly asking for it, while the United States makes an excuse for it on the immature excuse. Although they are all ally countries, the United States is the United States and Britain is the United Kingdom.

The K2 radar codenamed "Cape of Good Hope" is composed of a transmitter, a transmitter, a receiver, a receiving antenna, a monitor and a voltage-regulating power supply. It is carried to the south, which is a bit difficult to walk on the roof.

It really takes a lot of effort to reach the top of Zhushan.

Gao Fei also knew the main reason why the United States did not give Britain but helped China. First, it was to appease the Chinese government and reduce the British embezzlement of Indian aid supplies some time ago. Second, China could not create such radar at all. The United States

There is no possibility of technology leaking. Even for the British, it is possible to provide them with old goods only when the Americans have developed new radars, but it is not free. The Americans used twenty-six ships in 1941.

The old destroyer exchanged for the 99-year right to use the British 17 bases in the Northern Hemisphere. What this means is, at that time, Roosevelt's biggest shield against Churchill was the obstruction and interference of isolationism. In fact, this obstruction and interference.

It was just that Roosevelt deliberately magnified it, and it is most appropriate to describe Americans as "no profit" without gains.

Gao Fei did not wear a general's uniform, but instead put on a set of lieutenant jackets commonly found in the Expeditionary Force. Gao Fei was wearing the lieutenant's uniform. Except for Jiang Jingguo who found a lieutenant's jacket, the rest of the people became lieutenants.

Even private.

Gao Fei found that the Chinese soldiers sitting on the ground were different from the sumptuous lunch of American engineering and technicians. Each of the two Chinese soldiers received a bag of Allied D-type standard field rations. For the large strips of biscuits in the ration bag, most Chinese soldiers were

I chose to keep half of it and put it in my lunch box.

The Americans looked at the D-type field rations they described as able to eat the strongest wild dogs to death, and they actually ate them with relish in the mouths of Chinese soldiers. Could it be that the field rations airlifted to the Chinese are specially processed?

A handsome and graceful American military engineer with a strong curiosity asked for a bag from the Chinese military officer who distributed food rations. After opening it, he immediately frowned and shrugged helplessly at his companion, and then casually put it on.

The bag of rations was thrown into the nearby grass, and all the Chinese soldiers eating nearby were stunned.

Zhao Chenghui, the chief installation commander who had just sent Antina out of the installation command, saw everything in his eyes. Before he could walk over, a captain who didn't know walked straight into the grass and bent down and slowly picked up the thrown ones.

The dry food wiped off the dust on it, took out a piece and took a bite, nodding with satisfaction.

The captain's strange behavior attracted the attention of Antina and almost all American engineers. Gao Fei looked at the dry food in his hand for a long time before he spoke in a heavy tone and slowly said: "When this powerful enemy invades the country, the country has fallen.

, When the national crisis is in its prime, the people of the whole country are united in fighting the enemy. Every grain of food and every bullet is extremely precious. The materials provided by these allied countries are exchanged for the blood of countless Chinese soldiers, so how can they be ruined at will.

waste?"

When Antina, who is proficient in Chinese, heard the implicit anger in the captain's words, she hurriedly explained: "No, no! Mr. Captain's supplies were provided to the Chinese government by the United States in accordance with the international free moral assistance! It was not used for any Chinese soldiers.
Chapter completed!