When I finally returned to Base 2 in Brazil, it had been half a month since I left the last time.

Let Hephaestus and the others continue to wander in the South Pacific region in the Ghost, Sun Cheng flew directly over Peru and Bolivia into Brazil, and soon after entering the Amanbay Mountains, he realized that he was swept by a set of electromagnetic waves.

Just as he was surprised, the Precursor quickly appeared in his field of vision.

"Welcome back, hosts......"

Seeing that the person who came was the forerunner, Sun Cheng's nerves that had been tense for half a month couldn't help but relax.

He nodded to the Precursor with some relief, "It seems that you have not been idle during the time I have been away. Well done, are there reconnaissance systems installed around the base? ”

"Yes master, I've been inspired by the last time you told Atlas to build a few radiation orbs. Initially, Atlas wanted them to build several sets of radiation balls with a wider scanning range and more powerful capabilities, but Atlas came up with a better solution by modifying an AN/TPS-59 ground air surveillance radar. It works pretty well......"

Sun Cheng suddenly remembered that he had indeed purchased a batch of arms from the United States in the name of the Brazilian Arms Trade Company.

At that time, in order not to arouse the suspicion of the other party, in addition to the Hellfire missile, he also purchased a lot of other things, including a set of AN/TPS-59 vehicle-mounted ground-to-air surveillance radar.

The AN/TPS-59 vehicle-mounted surface-to-air surveillance radar is a good thing, it is a military surface-to-air surveillance radar manufactured by Lockheed Martin for the United States Army, using active electronically scanning array (AESA) technology, working in the L-band (1.215-1.400 GHz).

The radar rotates with a scanning frequency of 6 to 2 times per minute, is capable of providing 360-degree azimuth coverage, with a detection range of 10 to 740 km, a maximum detection altitude of 305 km, and a maximum detection elevation angle of 60 degrees.

In order to protect against electronic and kinetic attacks, the radar also uses frequency agility technology (i.e., the technology to quickly change the wireless frequency), which can be said to be an excellent vehicle-mounted ground-to-air surveillance radar.

However, American manufacturing has always been very expensive, and there is no shortage of similar competing products that are cheaper than it in Europe, as well as Russian and Chinese products, so in addition to the U.S. Army, only Egypt, Bahrain and China's treasure island region have a small number of purchases.

Needless to say, after the transformation of the engineers, the AN/TPS-59 ground surface surveillance radar arranged by the forerunners around Base 2 must be even better.

Otherwise, it would be impossible to find Sun Cheng who did not open the core function at once.

Sun Cheng was not dissatisfied with the fact that they did not design and manufacture Atlas themselves, but only modified the existing radar system.

It's true that Cybertron's technology is more advanced than Earth's, but the sappers needed not only materials but also valuable energy to recreate a more advanced vigilance scanning system.

In comparison, transforming on the basis of the current existing equipment is a method that is very in line with Sun Cheng's current strength.

Since he had met the forerunner, Sun Cheng also stopped, and did not choose to fly directly to the underground cave, but walked with him along the mountain road to the base without hurry.

Passing by a valley with excellent terrain twenty kilometers away from the base, Sun Cheng couldn't help but stop, and his eyes stopped for a moment on a small hydroelectric power station in the river below, before walking forward.

This small hydropower station, which has been built, is now the main source of energy for the No. 2 base.

The sappers convert the electricity collected here into a high-purity energy liquid or block of energy as standard on Cybertron through the 'Energy Extraction and Conversion Device'.

In contrast, the function of several diesel generator sets in the base is now to supply energy to many equipment in the base.

As more and more equipment is housed in Base 2, the daily power consumption is already increasing.

"The host...... We have also selected a suitable site for the second group of small hydropower stations and have started construction, but there is no power generation equipment for the time being......"

"Got it, I'll send it in a while......"

There are few suitable places in the Amanbai Mountains for hydropower plants, and they are extremely restricted, with only a few small hydropower plants being built.

Sun Cheng also knows this, so in order to develop faster, the engagement between China and Russia, which he said earlier, needs to be seriously promoted.

Thinking of this, he was just about to ask the forerunner about the manufacturing of industrial robots in the base.

Unexpectedly, before he could speak, the forerunner suddenly seemed to remember something, and said again: "By the way, master, seven days ago, a group of humans tried to enter the depths of the Amanbai Mountains. After I personally arrived to reconnoitre, and after determining that they were supposed to be just a human geological expedition, in order not to attract attention, I only got a spearhead pit viper and put it in a tent and bit one person, so that they had to evacuate! ”

"Geological expeditions?"

Sun Cheng frowned slightly, if it was them, it was indeed possible that they would be interested in the depths of the Amanbai Mountain Range.

However, the Precursor's strategy surprised him a little, and after thinking about it, he gently bowed his head and praised: "Yes, I will deal with them like this in the future." I'll leave the security of the base to you, at least for the next few years, you can't let humans get within a hundred kilometers of the base! ”

"Yes, master!"

Between the conversations, more than a dozen kilometers of mountain roads were quickly completed.

The forerunner had apparently informed the base before, and when Sun Cheng and the two of them arrived outside the underground cave, Atara and the two of them were already waiting there.

"Welcome back, hosts......"

"I'm back!"

With a slight bow, Sun Cheng took the lead and walked into the underground cave.

I haven't seen it for half a month, and the No. 2 base can be vaguely seen that there have been some changes compared to before.

In the base, you can see industrial robots everywhere.

Just on the way to the main hall, he saw at least six industrial robots, arranging power lines and monitoring equipment on the wall.

"During this time, how many more industrial robots have been built?"

Sun Cheng couldn't help but ask Atlas curiously.

"After the hydropower plant was put into operation, energy began to accumulate, and recently we have built a total of 17 industrial robots. The reason why the efficiency will be improved so much is because we have completed an automatic production line of industrial robot parts and components in accordance with your requirements, and at least seven industrial robots can be used every day in the case of sufficient materials and energy! ”

This is already very efficient, after all, the parts of industrial robots are not shoddy things, in order to make them act agile, the sappers were designed in full accordance with human mechanics when designing, from the legs to the arms, and then to the vast majority of the body, all of them are designed with extreme precision, even if it is the production line of parts manufactured by Atlas, it is difficult to raise the efficiency to a higher level.

ps：

Thanks to the three readers of "The Man Who Reads the Harem Book", "Yunshen Doesn't Know Where to Find", and "Ricardo M Lu Mingfei" for their great tips and support.