According to Qi Zhenjiang, this high-frequency radio wave belongs to the ground wave, which does not enter the atmosphere, nor does it enter the ionosphere, but only propagates according to the surface.

Because of the poor diffraction force, the transmission distance can only reach ten kilometers at most. In areas like Nanjing City with dense buildings, there may be more than one discount.

Fang Buwei understood as soon as he heard it.

Aren’t the walkie-talkies of later generations a similar nature?

Qi Zhenjiang also explained that the reason why the Japanese consulate uses this kind of radio wave is likely because the power of the other party's transceiver equipment is too low, and it is replaced by other long-distance radio wave frequencies, so even if the other party can receive it, it will not be able to reply.

The power is too low to reply?

Fang Buwei suddenly thought of the low-frequency radio station used by Li Fengnian when he arrested Li Fengnian.

It seems that the Japanese have been prepared for a long time. In order to prevent Nanjing spy agencies from using the power outage in partitions, they have prepared low-frequency radio stations that can be enabled with just a dry battery.

Hearing this, Gu Zhenlong frowned suddenly: "In this way, the partition power outage method will not work!"

"It's true!" Qi Zhenjiang replied.

The method to find a radio station when the partition power outage is originally used to protect Fang Wei. For him, as long as the radio station that receives this signal dares to reply, he can use the system location to find it out.

Of course, you have to do what you should do first.

Fang Buwei nodded as well, revealing a hint of sadness just right.

"You have times of worry?" Gu Zhenlong smiled and comforted, "Don't worry, even if the power outage in the partition doesn't work, the radio station is still there, right? With such a strict search, can the Japanese still put the radio station in their pockets?"

Qi Zhenjiang looked at Gu Zhenlong, then looked at Fang Buwei, looking at him wanting to speak but stopping.

"If you have a fart, just let it go!" Gu Zhenlong cursed.

"I was thinking, what if the Japanese spy team or radio station were hidden in a place where we couldn't search?"

"The possibility is not high!" Ma Chunfeng shook his head, "The places that cannot be searched, except for the consulate, are our places. Where can they hide? Presidential Palace, Yihe Mansion?"

Yihe Mansion is also known as Meiling Palace.

"If Japanese spies have the ability to hide in such a place, what else should we do to investigate? Let's surrender as soon as possible..." Gu Zhenlong continued again.

Fang Buwei's eyes flashed slightly.

He wished he could get out of a few more traitors, otherwise he would not be able to afford so much effort and trouble.

"It is impossible for the consulate... The Japanese know that as long as they are related to them, we will be guarding everyone. Not to mention the consulate, the Asahi Foreign Service will not go there. Otherwise, once they are targeted, it will be abolished. How can they act?" Ma Chunfeng said again.

Not to mention places like the consulate and Asahi Foreign Service, in Nanjing, as long as the Japanese are publicly identifiable, they are all on the list of major institutions, without exception, and they are all specially cared for.

This is also the result achieved by Fang Buwei after trying his best to promote it.

"What if the Japanese spy just receives orders and doesn't use a radio station at all?"

Qi Zhenjiang's love of arguing has been dealt with again.

Gu Zhenlong asked with his beard, "Then tell me, how should they contact me if they need to ask for instructions? Do you personally go to the embassy to report?"

Qi Zhenjiang choked.

Fang Buwei followed Qi Zhenjiang's axis and thought about it.

If you don’t use a radio station, the phone will be eavesdropped again. How can you contact us?

Learning underground party depends on two legs?

The underground party has no money and can't afford to buy a radio station, so it uses this method that is easily exposed. The Japanese have not been kicked by donkeys.

There should be no such possibility, otherwise the Japanese consulate's actions specifically using high-frequency ground wave frequency to send reports cannot be explained.

But Fang Buwei didn't expect that Qi Zhenjiang would really hit it.

Until dawn, he did not wait for the reply of this high-frequency signal.

The Japanese consulate sent another telegram using this frequency, but the other party never responded.

The search team did not find any clues related to the spy.

The thieves caught a lot, the thieves caught a few, and even fled the fire.

"If not, please withdraw the person first!" Ma Chunfeng sighed and looked at the time. "There are all the places that should be searched, and there is less than an hour left, so it is not very useful to keep it..."

The martial law time for reporting is only eight hours, from 10 o'clock to 6 o'clock the next day. Regardless of whether there is a result or not, the whole city must return to normal at 6 o'clock.

"Director wait, I'll think about it first!"

Fang Buwei replied.

What's wrong with this?

Is it true that as Qi Zhenjiang said, the other party only needs to receive orders, not report or request instructions, so there is no need to use a radio station?

"I'm so weird?" Gu Zhenlong asked with his eyes wide open, "Does there not be a secret radio station in Nanjing, no Japanese, and no underground party?"

Fang Buwei couldn't figure it out either.

The underground party was because he informed him that all the people who should be withdrawn were withdrawn. What about the Japanese?

"Chief Qi, is it possible that we have missed some band frequencies?" Fang Buwei asked suspiciously.

"Impossible!" Qi Zhenjiang pointed to a long row of radio stations, "All bands are monitored. As long as there is a signal, they can be monitored. Our people will record the newspaper copy in time..."

Fang Buwei glanced at Qi Zhenjiang deeply and walked to the radio station of the General Office.

He slowly rotated the band and twisted, and a messy sound came from the radio.

There is morning broadcast, but more of an electric sound.

"Didi..." Fang Buwei twisted to a frequency, and occasionally a sound signal would be heard from the radio station, but most of them were noise, indicating that the signal was extremely poor.

"Is there something really missing? You damn..." Gu Zhenlong pointed at Qi Zhenjiang's nose and cursed.

Qi Zhenjiang was a little amused and laughed: "Commander, listen to my explanation... This is ultra-short wave, and the equipment required for transmission is extremely complex and huge. How to say it? Using this frequency and wavelength to send a telegram is equivalent to using a cannon to kill mosquitoes... No one can use it at all?"

"No one can use it?" Fang Buwei suddenly opened his eyes wide.

Qi Zhenjiang nodded vigorously: "Yes! Most of these radio waves are used for remote navigation at this stage, and it is estimated that only military powers such as Britain, the United States, Germany and Japan will use them..."

Fang Buwei's eyes rolled quickly.

I took it for granted that I made such a big joke?

No wonder no one contacted me for a week. It turned out that the underground party could not send such radio waves of wavelength and frequency.

Don’t think about this for now, let’s deal with this level in front of you.

"The Japanese don't use radio stations, so what do they usually contact?" Gu Zhenlong said suspiciously, "Can you say there are no Japanese spies in Nanjing?"

Fang Buwei subconsciously curled his lips.

/txt/94721/._

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Chapter completed!