"Report, radio signals for illegal external contact!"

In the communications monitoring office of the Ministry of National Defense, Ma Xinlan received an urgent report from his subordinates.

"Intercept and decipher the signal immediately, notify the Department of Homeland Security to dispatch immediately, and find him out for me!"

"The emergency radio interception system has been activated, and the signal is being deciphered!"

"The Department of Homeland Security has been dispatched!"

Everything was going on in an orderly manner, Ma Xinlan walked back and forth, her left hand kept tapping on the back of her right hand.

The professional feeling told her that today's radio signal was exactly the same as the radio signal that appeared half a month ago. Although DHS agents were also dispatched urgently, they were unable to catch the other party.

Today, though, is different. Because the DHS's radio direction finder has been upgraded again, the sensitivity and accuracy have been greatly improved, and the detection range has been doubled.

In terms of homeland intelligence security, Ma Xinlan's communications monitoring room of the Ministry of National Defense has played a huge role, and they use Tesla's latest full-band wireless monitoring equipment successfully developed in radio to achieve full-band monitoring from high-frequency short-wave to low-frequency long-wave.

Of course, this is not true full-band radio monitoring. In addition to the theoretical full wave, including short wave, medium wave and long wave, there are also ultra-long wave, ultra-short wave, decimeter wave, centimeter wave and millimeter wave several radio bands, but at present, the radio equipment of Shijie countries is basically concentrated in the short wave and medium wave range, a small number of equipment use long wave, ultra-long wave and ultra-short wave are still in the laboratory research stage, and decimeter wave, centimeter wave and millimeter wave have not been involved in research, let alone practical use.

Therefore, the communications monitoring equipment of the Ministry of Defense can listen to all radio signals so far, and it is understandable to call it full-band.

In fact, Tesla has completed the theoretical research work of ultra-long wave, ultra-short wave, decimeter wave, centimeter wave and millimeter wave, but it is a pity that the industrial manufacturing jishu of this era has not yet reached that kind of accuracy, so the Tang Empire has not been able to achieve the real sense of full-band radio monitoring capability for the time being, and it needs to wait for industrial manufacturing capabilities and more sophisticated electronic instruments to come out.

At the request of Zhang Meng, Tesla further applied the radio jishu to the military level, and the high-power radio detection system, radio interception system, and radio reverse positioning system were soon put into use.

Although these systems had various problems and flaws at first, Tesla and his assistants continued to improve and refine them, allowing these high-tech equipment in the radio field to work.

These high-tech equipment are used by the Department of Homeland Security to catch domestic spies, not only can intercept all radio communications, but also can block radio communications in a specific band, and even use military communication command vehicles equipped with radiolocation systems, so that once the Department of Homeland Security discovers that someone is illegally contacting the outside world through radio, it can quickly use the radio location vehicle to find out the location of the other party, so that the enemy has nowhere to hide.

Downstairs in a residential building in the western district of Chang'an, a DHS radio surveillance vehicle pulled up at the door, and the strong radio response caused the pot-lidded radiolocation device on the roof to point in the direction of the building's sixth floor.

"Action!"

At the commanding officer's order, a group of specially trained agents quickly cordoned off the entire building, and then rushed in groups of two.

Due to the fact that the equipment of the radiolocation system is still in its early state, the accuracy is not very high. This is also the main reason why some enemy spies were able to escape during the previous operations.

Although the radiolocation system has been upgraded this time and the accuracy has been improved a lot, the DHS agent door still does not dare to be careless, although it points to the area on the sixth floor, they still start a comprehensive search from the fourth floor to the ninth floor, so that the enemy has no possibility of escape.

Bang! Bang bang!

Sure enough, gunshots were heard on the seventh floor, and three men dressed as construction workers shot at the secret service members, who had apparently received strict military training and had guns that killed them.

If it weren't for the capture of him, the DHS agents would have beaten him into a meat sieve with M1 submachine guns. In order to capture the enemy alive and obtain useful information, the agents can only use weapons such as tranquilizer guns and ether bullets.

Miyamoto Iji was originally engaged in espionage intelligence gathering activities in Chinese mainland, and on the orders of Kenji Dochihara, he led more than a dozen of his subordinates to infiltrate the Tang Empire by smuggling refugees, and has been lurking in construction sites.

His nightmare began a month ago, and with the rapid deterioration of relations between the Tang and Japanese countries, the Tang Empire's sense of war preparedness became stronger day by day. Detective Miyamoto heard a lot about the Tang Army's latest combat preparations, and when Jihua was sending out the information, his men were arrested one after another, and the original dens were eliminated one after another.

Miyamoto Iji is very entangled, he has been engaged in intelligence work for more than 20 years, and he has not missed a single time, but he has had many accidents in the Tang Empire, which he looks down on the most. At first, he thought that his subordinates had defected, but soon he discovered a shocking secret, as soon as he sent a telegram, agents from the Datang Homeland Security Bureau would soon come over.

He was completely stunned, he never thought that such a newly-born inconspicuous island country would be able to master high-tech equipment that even a big and powerful country lacked high-tech equipment.

He panicked!

Yes, that is the innate fear of the unknown in human beings themselves.

Today, he once again confirmed his suspicions, but the most unwilling thing for him was that he could not pass on the information.

Iji Miyamoto hid behind the wall to resist, but at some point an ether bomb exploded behind him, and before he knew it, he passed out.

When he woke up again, he was tied up in the DHS interrogation room.

"You don't want to get any information from me!"

Iji Miyamoto knew that the Datang agents intended to extract information from him, and as a senior agent of the special high section, he knew all the processes in the interrogation room, and he also knew how to deal with the interrogation.

But what he never expected was that the Datang agents in front of him had more powerful interrogation methods, which the special high class and even the agents of Shijie countries did not know and had not experienced.

"Inject him with prazyme!"

After trying all the torture to get him to speak, the two agents in charge of interrogating Miyamoto had no choice but to take out Zuihou's killer trick and use drugs to induce him to confess.

At this time, the formulas of the prazymes used by the agents of the Datang Homeland Security Agency were obtained from Zhang Meng, and they were purified by using the current Shijie's mature chemistry to make jishu. Although there is still a certain gap with the high-efficiency prazyme of later generations, fortunately, the agents of this era have not experienced this kind of anti-drug inducement training, and they have no resistance to prazyme at all, so the effect is much stronger than that of later generations, because the agents of later generations basically have strong drug resistance.

Miyamoto Iji quickly lost himself, and as if he saw his boss and colleagues in front of his eyes, he said word for word all the information he had detected in the territory of the Tang Empire.

In the office of the director of the Bureau of Homeland Security, Tan Jincheng's face couldn't help but change greatly after reading the emergency report sent from the confidential room, and he hurriedly ordered the adjutant to prepare a car and rush to meet Zhang Meng.

"Are they really planning to assassinate me?"

Zhang Meng was not very surprised when he heard that the Japanese Jihua had assassinated him, as if he had expected this a long time ago.

Tan Jincheng said worriedly: "According to Miyamoto Iji's intelligence, the Japanese have made two preparations, one is to force the empire to hand over the gold of His Royal Highness and Datang Bank to them. The second is to prepare to forcibly occupy the empire by force, directly plunder us, and take everything from us. If the assassination of His Highness is successful, then the Tang Empire will be leaderless, and it is inevitable that it will collapse in an instant. ”

Tan Jincheng believes that the Japanese are more inclined to adopt the latter strategy, which Zhang Meng agrees with.

After all, the Tang Empire was created by Zhang Meng, Zhang Meng is the soul of everyone, the pillar of the empire, if something happens to Zhang Meng, then this empire will collapse in an instant.

"Looks like I'm underestimating these little Japanese devils!"

"The lowly position has been tripled with additional manpower for the safety of His Highness. With the current surveillance capabilities of our Homeland Security Agency, it is very difficult for the Japanese to infiltrate. ”

Zhang Meng thought for a while and said with a smile: "The soldiers are not expensive!" Are you engaged in such a big battle for fear that the little devils will not know that you have strengthened your defenses? ”

"What does Your Highness mean?"

"If we don't give the little devils a chance to attack, we will never catch the enemy lurking inside the empire! At this time, our strategy should be loose on the outside and tight on the inside! ”

"Loose on the outside and tight on the inside!"

Tan Jincheng repeated these four words, and soon understood Zhang Meng's true intentions.

"Your Highness is wise!"

Zhang Meng smiled slightly, revealing a semi-white tooth.