The secret war is silent

Team Qin, the signal is there again! During dinner in the evening, Zhao Shiyin, who was staring at the signal, rushed into the dining room.

Notify Hu Yanran (Xu Jihong) and seize the time to locate... Luo Yao quickly ordered.

Didn't even eat any food.

Luo Yao and Zhao Shiyin came directly to the radio room.

Anyway, this signal shouldn't last too long. It doesn't matter if you play for a while and then eat.

It's still this signal. The signal strength is obviously much better and the technique is clearer. He should have improved the radio. This is really a talent. He can compete with Xueren... Luo Yao directly put the earphones to his ears. While listening, he commented.

Team Qin, the call sign has not changed, but the content has changed. We don't have the code book, so we can't decipher it for the time being!

Don't worry about him. Now we're just waiting for the news from Hu Yanran. I hope she can seize these few minutes.

At this moment, there is no curfew in Xiangcheng, and there are still many people walking around on the streets, but most of them are preparing to go home, or are already on their way home.

After the victory in the Battle of Xiangcheng, and the celebration of the Double Ten Festival a while ago, the time limit was relaxed. Now the curfew time has been extended by two hours, and the streets will not be cleared until eight o'clock.

A radio direction-finding vehicle converted from a truck immediately drove out from a hidden location after detecting the signal.

Honestly speaking, the radio direction finding equipment eliminated by the British is still good. Xiangcheng is no better than big cities like Shancheng and Jinghai.

There are too many active radio stations in those cities, government departments, private ones, and various underground latent intelligence stations...

That's too difficult to monitor.

In comparison, the radio waves in the sky above Xiangcheng are relatively sparse, easy to monitor, and subject to less interference.

Then the effect is also good.

Because of limited opportunities, this time Luo Yao asked Xu Jihong to use the cross-fixing method to determine the location of the radio station.

In addition to the radio direction finding car that Xu Jihong followed, there were two people carrying portable radio direction finders, which were used to conduct direction finding in three directions at the same time when the radio station was transmitting signals.

The point or area where the three lines intersect is the location where the radio is hidden. This is a method to quickly determine the location of the radio.

Because the correct radio station calling frequency is already known, this saves the time of searching for signals and directly locks the frequency.

Then just operate according to the direction finder.

This time the signal lasted about eight minutes, nearly three minutes longer than the last time. It was obvious that the person who broadcast the signal also wanted to risk getting in touch through a call with added time.

Team Qin, the signal is gone. It should have been cut off actively. It called ten times in total, each time for about forty seconds. This guy controlled the time very accurately. Chen Zeronghui reported.

Team Leader Hu reported that when the signal disappeared, her location was near Bajiaoting Street. A radio operator reported.

Where are the other two people?

One is in Tiandeng Alley, and the other is near Bagua Alley! Soon, the location feedback of the other two people came back.

Luo Yao conveniently marked the locations of the three people on the map of Xiangcheng.

There is exactly a triangular area between these three points.

Notify Hu Yanran to return to the base first and wait for his next broadcast. I guess his next broadcast will be around four or five o'clock tomorrow morning. Luo Yao ordered, and the time chosen by Kinoshita Zhishui was It was carefully calculated. Although it was conducive to the transmission of electromagnetic signals at night, it was also easy to be monitored and captured. Therefore, he chose to broadcast quickly while eating. This is a smart man.

Decided to go there tomorrow.

…

Get up and accompany me to Xiangcheng. At three o'clock in the morning, Li Fu was sleeping soundly when Luo Yao pulled him up from the bed. Chen Zerong was on duty, so Li Fu slept alone.

Otherwise, it would be difficult for Luo Yao to break into the couple's room.

Brother, what time is it... Li Fu obviously didn't wake up, and became afraid reluctantly. When he looked at his watch, it was less than three o'clock, and he complained even more.

I'll give you five minutes to wash up. Hurry up, you have a mission! Luo Yao gave him a direct order without giving him time to complain.

Li Fu suddenly became excited, opened his eyes, and moved his hands faster.

you drive.

Just the two of us? Li Fu was stunned. He originally thought that Luo Yao had brought at least seven or eight people, but when he looked down, it was just him and Luo Yao.

What's wrong? Fujita Shundu's special agents have been arrested. What are you still afraid of? Luo Yao asked.

It's not that I'm afraid, but the two of us are too monotonous. Why don't we call each other again? Li Fu said.

Are you leaving?

Let's go, let's go, why don't I leave? Li Fu got in the car, started the car and drove out of Yangyuan.

…

More than an hour later, Luo Yao and Li Fu drove to the temporary monitoring base where Xu Jihong was located.

Because of the special passes from the theater headquarters, they could enter the city before dawn.

Team Qin is here?

No rest? Luo Yao asked in surprise when he saw Xu Jihong dressed neatly.

I've already slept. They went to bed in the middle of the night and I went to bed in the middle of the night. Xu Jihong explained, Why are you here?

It only takes three things. This is probably our only chance to seize him, so I have to come. Luo Yao said.

Although the other party may not be an experienced agent, he has also undergone such training. He should know that sending telegrams in enemy areas is very dangerous. Once detected, it will be exposed.

Generally, there are limits on the number and time of sending telegrams at a location. Of course, in many cases, the intelligence team will set up guard posts, especially when sending telegrams.

And for a lone traveler like Kinoshita Shisui, the only way to ensure safety is to constantly change the position where the message is sent.

No matter what he does, he must always consider the worst.

If you had come, I guess this person wouldn't be able to escape today. Xu Jihong said happily. She had fought alongside Luo Yao in Jiangcheng and knew some secrets about Luo Yao's cracking of the Ghost Radio.

Luo Yao's abnormal hearing was even more impressive among the first batch of students in the training class. Now, although it is rare to hear that he has made achievements in this area, everyone who knows him knows that he is now in a high position. More often than not, there is no need for him to leave the field in person.

Don't flatter me, we still have to see if he will broadcast it today. Luo Yao said with a slight twitch in the corner of his mouth.

It should be so. Once this kind of telegram for help is interrupted, it will arouse suspicion. Xu Jihong said.

I hope so.

In counter-espionage work, any accident is likely to happen. In many cases, investing a lot of manpower and material resources may not necessarily yield results.

This is not an easy job.

It's half an hour until six o'clock. We order them to leave and we can get ready. Luo Yao looked at his watch.

yes.

Starting from the location detected yesterday, once a signal comes in, a lot of time can be saved. The time for the spy to broadcast is limited.

Luo Yao guessed that the broadcast at this time was also an inference based on the first discovery of this signal.

The other party must also consider the receiving party of this signal, so they should also receive it at this time.

Because if there is no pattern in time, if the other party misses the time, how can he receive the message?

Of course, he can also agree on the next broadcast time in the telegram, then he can only gamble.

Luo Yao and Li Fu boarded Xu Jihong's radio direction finding car. The modified direction finding car was actually very spacious inside. It was covered with a layer of raincloth, so it was impossible to see what was inside. Of course, the antenna on the car was inevitably exposed. of.

No way, if you don't do this, how will you receive the signal?

In fact, this car has been modified for a long time. I didn't plan to use it originally, but I was prepared for it. In the end, I didn't expect that I actually used it.

The equipment on the car was all bought by Luo Yao from the British at super low prices. Although the British were reluctant, they had the control, so they bought it secretly in the end. They had to replace the old equipment with new ones anyway. To them, after the equipment is scrapped, it is no different from scrap metal. When sold to the Chinese, it is at least better than before it was scrap metal.

And if you just fill in some more losses on the report, the money to buy the equipment will go directly into your pocket.

What a good business, and the British are not stupid. Why can't they do this business? It's just because it's not safe.

Team Qin, there's a signal! The signal indicator light came on before the direction-finding vehicle reached the location last night.

You guys stay in the car and put me down directly in front. Luo Yao ordered.

The direction finding equipment of the radio station can only determine an approximate position and cannot completely measure the location of the radio station.

This accuracy range is actually very large, and may even reach hundreds of meters.

This kind of accuracy is not a big problem on the ocean, even if it is off by a few kilometers, because there are no obstructions on the sea surface, and the view is unobstructed, and you can see it with a telescope.

But it's troublesome on land, especially in cities, where there are various interferences and building obstructions. If you want to accurately locate the location of a radio station, you can't rely on radio direction finding equipment alone.

There are other auxiliary investigation methods.

Such as zone power outage.

If you have time, you can naturally use this method, but the conventional method will quickly make experienced spies alert.

Therefore, the most direct way is to cordon off the block where the radio station is located and then conduct house-to-house searches.

This is also the place that consumes the most manpower and material resources, and if nothing is found, it will alert the snake. Not every investigator is experienced and can find suspicious points.

Missing checks happen all the time, it's a game of hide and seek.

So, as soon as Luo Yao got off the car, he closed his eyes and tried hard to listen to the sounds around him, because it was just dawn and many people hadn't gotten up yet.

The whole city has not moved yet, and it is actually very quiet outside, which is conducive to the use of his hearing.

He walked very fast, almost with his eyes closed.

He had already heard the broadcasting voice and was familiar with the technique, so he easily locked onto the voice.

Very close.

Luo Yao was not completely focused on the voice, because the voice would disappear soon. He wanted to focus on the person who made the voice.

As long as you remember the characteristics of the person who made this voice, it is not easy to find this Japanese spy radio station.

This time the sending time is only three minutes!

It was obvious that the time was shortened, but his vigilance was still very high. Ordinary radio lateral equipment can only lock on an area. If you want to pinpoint that room, you still can't do it in any room.

And if the transmission time is shortened to one minute, basically all current radio direction finding equipment will be unable to locate.

If he wasn't seeking help from Jiangcheng's secret service, it would be estimated that each communication would not last more than two minutes.

The previously intercepted communication messages were all within this time period.

However, he never expected that there would be people like Luo Yao in the world whose hearing was incomprehensible. Although he once again shortened the sending time, he was still exposed.

Luo Yao smiled happily.

Found it, this guy is worth money!

Begging for a monthly ticket!