"Radio detection?"
Hearing Ma Xiaoguang say this professional term, Fatty and Lao Li asked in unison.
"Yes, time waits for no one. Instead of looking around aimlessly, it is better to go straight to the point and capture the spy's radio station. If you find the radio station, you can find the person..."
"To cope with a large number of message transmissions, manual labor is definitely not enough, and timeliness is difficult to guarantee. Therefore, it is most likely to use radio stations."
Ma Xiaoguang nodded and said firmly to Fatty and Lao Li.
"But this radio station detection requires professional equipment and a large number of manpower. Listening, screening, and interpreting... We only have three people."
Old Li frowned and admonished Chief Ma worriedly.
"Theoretically yes, but there is no need for it now... Commander Li of the Fifth War Zone can think of sending insiders to infiltrate the top management of the Neon Army. Will he have no one under his command?"
Ma Xiaoguang was obviously very satisfied with Lao Li's advice. He nodded, first affirmed his opinion, and then gave his reasons with a playful smile.
"Oh! Sir, do you want to borrow a boat to go to sea?"
As Chief Ma's chief confidant, Fatty reacted first.
"Yes! Since the insider has reported to Chief Li, there is a traitor here. According to the style of Chief Li and Chief Bai, how can we just sit back and watch?"
"They must have taken measures, and the wartime telecommunications control regulations will definitely be implemented in the Fifth War Zone. They are all elites, not just freeloaders."
"So, although we can't see the two commanders for the time being, we can ask some departments in the fifth theater to cooperate..."
Ma Xiaoguang is still very positive about the style of his brothers who dare to imagine.
Wu Dalang had no choice but to open a store.
It is even more important to have a one-spoken party.
Brainstorming and mobilizing the masses is the way to go.
"Although I say that, it is not easy to find a radio station in such a big city like Xuzhou."
Lao Li still gave his opinion with some worry.
"There must be a way. We first have a way - triangulation and zonal power outage!"
Ma Xiaoguang did not continue to talk about it and directly gave a solution.
"Triangulation? Power outage?"
This method made Fatty and Lao Li's eyes light up, and they felt that their useful knowledge had increased.
"Yes, since lurking spies want to transmit information, they must contact each other regularly. In addition, the two armies have begun to exchange fire recently, and the other side must need a lot of information from the national army..."
"The radio activities of Japanese spies will definitely be frequent recently. Even if the other party wants to be silent, I am afraid that the commanders of the fifth theater will not agree."
"So, we can completely cut off the power by zoning, and then find the radio station through triangulation!"
Ma Xiaoguang told the two brothers his reasons.
At the same time, he also briefly explained the triangulation method to the two brothers who were eager to learn.
"There are radio equipment in the military, but not all radio stations. We only need to use more than three detection radios..."
"When we detect, we start from three basic points and draw a line with the strongest signal. The place where the three lines meet is the area where the suspicious radio station is..."
"Then divide the area into several smaller sections, and cut off power to each section in turn. If the telegraph signal in the power-supply area stops at this time, it means that the target is here!"
Ma Xiaoguang explained it patiently while drawing pictures on the paper.
After some explanation, both of them nodded in praise.
Now that we have a solution, everyone feels at ease and waits for nightfall.
That night.
"Please ask Team Leader Fang Xin. I will fully cooperate and make arrangements immediately. First, arrange detection and regional power outages. Second, the radio station of the Chief's Department will be kept silent immediately..."
Yang Dehua's eyes flashed with light and he said slightly excitedly.
Ma Xiaoguang smiled and praised: "Consultant Yang is also very professional. He did not notify us in advance, so the Japanese spies were unaware and caught off guard."
When Yang Dehua heard this, he smiled sheepishly and said, "Team Leader Ma laughs at some superficial skills. The main reason is that both Chief Li and Chief Bai attach great importance to military intelligence work."
"As expected, a strong general has no weak soldiers, so let's stop talking and get ready to start."
Ma Xiaoguang praised Yang Dehua and instead of continuing with the formalities, directly announced the start of the operation.
Xuzhou in the 1930s was not as large as the cities of later generations, and it was wartime, so there were not many areas with access to electricity.
In addition, power outages were common during wartime, but they were not very unexpected.
One o'clock.
Telecommunications Room, Headquarters of the Fifth War Zone of the original Daotai Yamen, Wenting Street.
"Reporting to the two officers, after detection, there is a suspicious radio station near Huanglou Street in District 1, and with the power outage, the radio signal disappeared."
The information soldier took a monitoring record and reported to Yang Dehua and Ma Xiaoguang.
"Okay, continue monitoring."
Yang Dehua nodded and ordered the dispatcher.
"Let's take action immediately to seal off the neighborhood here and search for suspicious persons?"
Yang Dehua took out the monitoring records from the folder, pointed to the location of Huanglou Street on the map of Xuzhou city on the wall, and asked Ma Xiaoguang.
"I always feel that the spy's radio station is exposed too easily."
Ma Xiaoguang frowned and said to Yang Dehua hesitantly.
"What does Team Leader Ma mean?"
"I think the Japanese spy was exposed too easily. This person, or his team, was able to lurk deep in the fifth theater for so long without being exposed. I think this opponent should not be that weak."
"It makes sense...what's next?"
Hearing this, Yang Dehua suppressed the urge to raid Huanglou Street and asked Ma Xiaoguang quietly.
"Since this mole is internal to us, we now know the location of the radio station and can take another look."
"Of course, we are not just waiting for things to happen. We have to do two things. One is to let people keep an eye on Huanglou Street. I will arrange this."
"In addition, please ask Staff Officer Yang to sort out a list of all personnel in our headquarters, including their residential addresses."
Ma Xiaoguang touched his chin and said to Yang Dehua unhurriedly.
"If the Japanese spy is not alone, and he does not go to Huanglou Street at all, and he has a telegraph operator, wouldn't this list be useless?"
Yang Dehua asked with some confusion.
"This possibility exists, and it is very high. The purpose of our doing this is not to go to Huanglou Street to find people, but for other purposes."
Ma Xiaoguang fully affirmed Yang Dehua's questions, but also gave his own reasons.
Yang Dehua did not continue to ask, but nodded, turned around and went out - to prepare the corresponding list for Ma Xiaoguang.
after an hour.
Yang Dehua came to the telecommunications room again with a thick stack of lists in his hands.
"Chiefs and colleagues who are not here in Xuzhou can first exclude..."
Ma Xiaoguang held a two-color pencil and moved the pen quickly, quickly crossing out some people who had no chance at all.
"The remaining chief officers at the corps, division, and brigade levels can be crossed out."
As Ma Xiaoguang said this, he excluded many people and put the list aside.
"We cannot rashly doubt the remaining personnel, but we cannot rule them out casually."
Ma Xiaoguang took the remaining two pages of the list and said to Yang Dehua thoughtfully.
"The rest are personnel from various departments of the headquarters who may have access to core intelligence. We should all focus on it? This way we are afraid of insufficient manpower, and it is easy to alert the enemy!"
Yang Dehua looked at Ma Xiaoguang's expression and asked him in a deep voice with some hesitation.
