"Report, monitor radio signals for illegal external contacts!"

In the Communications Monitoring Office of the Ministry of National Defense, Ma Xinlan received an emergency report from his subordinates.

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

"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, and her left hand kept beating 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 the agents from the Homeland Security Bureau also went on urgently, they failed to catch the other party.

However, today is different. Because the Homeland Security Agency'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 land intelligence security, the communication monitoring room of the Ministry of Defense where Ma Xinlan is located plays a huge role. They use Tesla's latest successful full-band wireless monitoring equipment in radio to realize full-band monitoring from high-frequency short waves to low-frequency long waves.

Of course, this is not the true full-band radio monitoring. In theory, the full-band includes short wave, medium wave and long wave, and there are also several radio bands of ultra-long wave, ultra-short wave, decimeter wave, centimeter wave and millimeter wave. However, currently, radio equipment in countries around the world is basically concentrated in the short wave and medium wave intervals. A few devices use long waves, ultra-long waves and ultra-short waves are still in the laboratory research stage, while no one has been involved in the research of decimeter waves, centimeter waves and millimeter waves, let alone actual use.

Therefore, the Ministry of Defense's communication monitoring equipment can monitor all radio signals so far, and it is understandable to call it the full band.

In fact, Tesla has completed theoretical research on ultra-long wave, ultra-short wave, decimeter wave, centimeter wave and millimeter wave. Unfortunately, the industrial manufacturing technology in this era still cannot achieve that kind of accuracy, so the Tang Empire has not yet achieved the true full-band radio monitoring capability. It is necessary to wait for the industrial manufacturing capabilities and more precise electronic instruments to be released before it can be realized.

At the request of Zhang Meng, Tesla further applied radio technology to the military level, with high-power radio detection systems, radio interception systems, and radio reverse positioning systems quickly put into use.

Although these systems had various problems and defects at the beginning, Tesla and the assistants he trained continued to improve and improve, allowing these high-tech equipment in the radio field to play a role.

These high-tech equipment were used by the Homeland Security Bureau to capture domestic spies. They can not only intercept all radio communication content, but also block radio communications in a specific band. They even use military communication command vehicles equipped with radio positioning systems, so that once the Homeland Security Bureau discovers that someone illegally contacts the outside world through radio, they can quickly use the radio positioning vehicle to find the other party's location, leaving the enemy nowhere to hide.

Downstairs of a residential building in the west district of Chang'an City, the radio reconnaissance vehicle of the Homeland Security Bureau was parked at the door. The strong radio signal reaction made the pot-shaped radio positioning device on the roof point towards the sixth floor of the building.

"action!"

At the commander's order, a group of special training agents quickly blocked the entire building, and then the two rushed in in groups of people.

Since the equipment of the radio positioning system is still in its early state, the accuracy is not very high. This is also the main reason why some enemy spies were lucky to escape during the previous operations.

Although the radio positioning system has been upgraded this time and the accuracy has been greatly improved, the agents of the Homeland Security Bureau still dare not be careless. Although they pointed to the area on the sixth floor, they still searched the area from the fourth floor to the ninth floor, so that the enemy could not escape.

Bang! Bang bang!

Sure enough, gunshots were heard on the seventh floor. Three people dressed in construction workers were shooting at the agents with guns. They were obviously under strict military training and guns were killed.

If they were not to capture them alive, the agents of the Homeland Security Bureau would have used the M1 submachine gun to make him into a sieve. In order to capture the enemy alive and obtain useful intelligence, the agents could only use anesthesia guns, ether bombs and other weapons.

Miyamoto Iji is a senior agent of the Japanese Special High School. He was originally engaged in spy intelligence collection activities in mainland China. At the order of Kenji Doihara, he led his dozen of his subordinates to smuggle refugees into the Tang Empire and lurked in the construction site.

His nightmare began a month ago. As the relationship between the Tang and Japanese countries deteriorated rapidly, the Tang Empire's awareness of preparation was getting stronger day by day. Miyamoto Iji heard a lot of the latest combat readiness actions about the Tang army and was planning to send out the information, but his subordinates were arrested one after another, and the original dens were dropped one after another.

Miyamoto Iji was very confused. He had been engaged in intelligence work for more than 20 years and had never failed. However, there were incidents in the territory of the Tang Empire that he looked down upon the most. At first, he thought it was his subordinates who had rebelled, but soon he discovered a shocking secret. As long as he sent a telegram, agents from the Tang Dynasty's Land Security Bureau would soon come.

He was completely shocked. He never expected that such a new and inconspicuous small island country could actually master high-tech equipment even if it was a big country.

He panics!

Yes, that is human beings’ own natural fear of unknown realms.

Today, he once again confirmed his speculation, but what he was most unwilling to be unable to spread the information.

Miyamoto Iji hid behind the wall to resist, but at some point an ether bomb exploded behind him and fell into a coma without realizing it.

When he woke up again, he was already tied to the interrogation room of the Homeland Security Bureau.

"Don't think of getting any information from me!"

Miyamoto Iji knew that Agent Datang was planning to get information from him. As a senior agent in the Special High School Class, he knew all the procedures in the interrogation room and he also knew how to deal with the interrogation.

But what he never expected was that the Tang agents in front of him had more powerful interrogation methods, which were something that special high school classes and even agents from all over the world did not know or experience.

"Inject him prasase!"

After trying all the tortures and having no choice but to make him speak, the two agents in charge of interrogating Miyamoto Iji had to take out their last killer weapon and use drugs to induce him to confess.

At this time, the formula of the prasase used by the agents of the Datang Homeland Security Bureau was obtained from Zhang Meng and purified using the mature chemical production technology in the current world. Although there is still a certain gap with the high-efficiency prasase in later generations, fortunately, the agents of this era did not experience this kind of anti-drug inducement training. They had no resistance to prasase at all, so the effect was much stronger than that of later generations, because the agents in later generations basically had strong drug resistance.

Miyamoto Iji soon lost himself. He seemed to see his boss and colleagues in front of him, so he spoke out all the information he had found in the Tang Empire without saying a word.

In the office of the Director of the Homeland Security Bureau, Tan Jincheng couldn't help but change his face after reading the emergency report sent from the confidential room. He hurriedly ordered the adjutant to prepare a car and go to meet Zhang Meng quickly.

"They are really going to assassinate me?"

Zhang Meng was not surprised when he heard that the Japanese planned to assassinate him, and seemed to have expected this.

Tan Jincheng said worriedly: "According to Miyamoto's intelligence, the Japanese made two preparations. One was to force the empire to hand over the gold from His Highness and the Datang Bank to them. The other was to report that all the force was used to forcibly capture the empire, directly plunder us, and take away everything we had. If the assassination of His Highness successfully, then the Tang Empire would be without a leader and collapse in an instant is inevitable."

Tan Jincheng believes that the Japanese are more inclined to adopt the latter strategy, and Zhang Meng agrees with him in this regard.

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

"It seems that I underestimated these little Japanese devils!"

"The manpower has added three times the staff to be responsible for His Highness's security. With the current monitoring capabilities of our Homeland Security Bureau, it is difficult for the Japanese to penetrate."

Zhang Meng thought for a while and said with a smile: "Soldiers are more expensive than elites! Are you afraid that the Japanese will not know that you have strengthened your defense?"

"What does Your Highness mean?"

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

“Lose outside and tight inside!”

Tan Jincheng repeated these four words and quickly understood Zhang Meng’s real intention.

"Your Highness is wise!"
Chapter completed!