super robot clone

After all, arsenic is a toxic substance, and too much exposure is not good for the body.

Nitrogen is everywhere in the air. Although steel can only eat pure metals, there is no problem at all by manipulating metal elements to synthesize some metal compounds.

Under the control of steel 镚, gallium nitride components, which mainly exist in laboratories around the world, are produced cheaply, and are continuously assembled into powerful phased array radar t/r components.

Chen Xin packed these components and moved them to a medium-sized van.

The two worked together and worked hard in the rented apartment for five days before they managed to get all the [-] kilograms of gallium.

Of course, among these gallium nitride t/r components, Chen Xin also asked Gang Jun to carry out a detailed application range division of its bands to adapt to radars with different functions.

For the radar band, most people must have heard of it.

Like l, s, c, x, etc. are the division codes of electromagnetic wave bands.

The earliest electromagnetic wave length used to search radar was 23cm, so this band was defined as the l-band (the prefix of English long), and later people changed the central wave length of this band to 22cm.

When the electromagnetic wave with a wavelength of 10cm is used, its band is defined as the s-band (the prefix of English short, which means electromagnetic waves shorter than the original wavelength).

After the emergence of fire control radars that mainly use 3cm electromagnetic waves, the electromagnetic waves with a wavelength of 3cm are called the x-band, because x represents a certain point on the coordinates.

In order to combine the advantages of the X-band and the S-band, radars with a center wavelength of 5cm have gradually appeared. This band is called the C-band (c is ise. The prefix of the word "combined" in English).

After the British, the Germans also began to independently develop their own radar, which they chose as the center wavelength of their radar.Electromagnetic waves of this wavelength are known as the k-band (k = kurtz, German for "short").

"Unfortunately" the wavelengths chosen by the Germans with their peculiar "precision" of the Germanic peoples can be strongly absorbed by water vapor.As a result, radar in this band cannot be used in rain and fog.

Therefore, in order to avoid this absorption peak, the radar designed after World War II usually uses the ka band (ka, the abbreviation of English k-above, which means above the k band) and the slightly lower frequency (ku. The abbreviation of English k-under, which means the band below the k-band).

However, Chen Xin did not let Gangyi produce t/r modules for all the above-mentioned bands, but mainly focused on the x-band and s-band.

There are also reasons for this. On the one hand, the S-band is currently the first choice for medium-range air-to-air warning radars in all countries, such as the Aegis system used on the "Arleigh Burke" class guided missile destroyer in the United States and the new generation of Type 45 missiles in the United Kingdom. The "Sampson" phased array radars used on destroyers are all developed based on the s-band.

Compared to the more accurate x-band radar. The s-band radar does not have the ability to accurately guide missiles. Generally, it can only conduct medium-range guidance for ship-to-air missiles equipped with active radar seekers, but it is helpless for semi-active guided missiles.

Therefore, European and American countries have been trying to convert shipborne phased array radars into s/x dual-band radars, so that they can simultaneously have long-distance tracking and detection and high-precision guidance capabilities.

X-band radar is widely used in fire control radar and airborne phased array radar, both of which have a very wide range of uses in the military.

In the last two days of manufacturing t/r modules, after careful consideration, Chen Xin asked Gangyi to produce another 1 L-band t/r modules.

L-band radar already belongs to the category of meter wave radar.Although the detection accuracy is limited, it has a very good detection effect on stealth aircraft.

For example, a very low frequency (VHF) long-range air surveillance radar installed on the mast behind the chimney of China's 052c guided missile destroyer is a kind of meter wave radar.

The reason why the mainland equips new ships with this kind of "antique" that seems to be designed in the 50s is because there is currently no electronic support equipment that uses this as the main working band, and the existing stealth aircraft cannot hide this ultra-long-wave radar. The effect is also relatively poor.

This move is obviously developed for the stealth technology that Western powers are proud of.

………………

In the conference room of the Intelligence Department of the General Staff, the weekly routine meeting of the working group of the Strategic Deception Bureau is being held.

The conference room was filled with smoke, Peng Guochen sat at the top of the conference room, and below were experts from various expert groups.

Since the last time the Zhanhu Bureau provided the General Staff with a report on the Las Vegas incident in the United States, all the previous judgments of the Zhanhuju Bureau seemed to have lost its direction.

Peng Guochen immediately reported the matter to the senior leaders, which aroused the great attention of the central government.

Soon, the order from the central government came down.The Intelligence Department of the General Staff is required to cooperate with the national security to collect clues about the UFO incident in Las Vegas at any cost, and compare it with the information provided by the Bureau of War and Ignorance.

In the following period of time, before the Las Vegas UFO incident, a series of weird incidents that occurred on the west coast of the United States quickly attracted the attention of intelligence personnel.

First, the state of California, citing the looting in Los Angeles, dispatched the National Guard to block all entrances to the Yosemite National Forest.

As a result, two nights later, a strange earthquake broke out in Yosemite National Forest Park.In the early hours of the next day, the Las Vegas UFO incident broke out.

Just yesterday, the Ministry of Intelligence obtained part of the data records of the radar station at Nellis Air Force Base that night through the mole lurking in the United States, the records show.That night, the three UFOs came out from the direction of Yosemite National Forest Park.

Peng Guochen exhaled smoke, put the cigarette butt out in the ashtray, and said, "Everyone has read the latest information, let's talk about our opinions."

An expert from the aerospace department said: "What is certain at present is that the technology on the earth still cannot explain the flight mechanism of these three UFOs. As for the things mentioned by the Strategic Deception Bureau before, I personally have reservations... ..."

Peng Guochen nodded, turned his head and asked another expert: "Professor Huang, you are new to our team. I believe you have seen the photo of Captain Feng. What do you think about it?"

Professor Huang is a top geologist in China and also the director of the Institute of Geology, Chinese Academy of Sciences. Due to the mysterious earthquake in Captain Peak, he was also invited by the working group this time.

Professor Huang adjusted his glasses and was about to speak when the door of the conference room opened suddenly, and a staff member from the Intelligence Department broke in and said, "Minister, the Bureau of War and Ignorance has contacted us..."