Work Prophet
Chapter 330 - 88 Ireya Gains Skills

Chapter 330: Chapter 88 Ireya Gains Skills

Before, Li Yu had brought handheld walkie-talkies to Green Field, with a transmitting power of 5 watts. These walkie-talkies have an effective communication range of about 1 to 3 kilometers in urban areas, and in the wild, they can reach 3 to 5 kilometers.

In Green Field, however, this figure could be doubled again, because compared to another universe plane, the Bratis Continent has a better electromagnetic environment.

Apart from a few electronic devices brought by Li Yu and Xiao Wa, there was almost no environmental noise here; yet, even so, communication could only be achieved within a maximum distance of 15 kilometers.

After Clara was kidnapped, Li Yu sent out the Black Hound Squad led by Tom to find her, yet after Tom left Green Field, they could only rely on traditional human messengers or pigeons to pass messages between them.

This method was considerably delayed, not to mention the risk of being intercepted midway.

Moreover, once Tom started moving and changed his communication address, Li Yu couldn’t maintain contact with him until he sent a message again.

Therefore, Li Yu began to consider establishing longer-distance communication methods.

The most direct solution was, of course, to increase the transmitting power.

For example, increasing the transmitting power from 5 watts to 50 watts would also increase the effective communication distance by about five times.

But even so, the maximum communication distance was still only 75 kilometers.

Apart from that, another common practice was to add relay stations.

The role of relay stations is to transfer and amplify signals.

This is somewhat like a relay race where, when you are about to run out of energy, you can hand over the baton to someone taller and faster to help you continue running thus reaching farther distances.

But unless IP relay stations are directly connected to the IP network, even with relay stations the communication distance that could be increased was still very limited.

Furthermore, the biggest issue with this method was that the relay stations had to be set up outside Green Field, which inevitably required additional manpower and energy to maintain the equipment.

Since neither of these methods was satisfactory, were there any other solutions that could meet Li Yu’s current needs?

The answer was affirmative.

That was the shortwave radio.

In the movie "The Eternal Wave," the protagonist Li Xia used a shortwave radio, which could send telegrams from Shanghai to Yan’an.

This was because, besides ground waves, shortwave propagation also included sky waves.

Signals could be sent to the sky through antennas, reflected back to the ground by the ionosphere, and then from the ground to the sky again; after multiple reflections, a signal that could only travel a few dozen kilometers with a ground wave could reach hundreds or even tens of thousands of kilometers away.

In the early days of espionage, the shortwave radios equipped by intelligence personnel mostly used CW communication, relying on Morse code to transmit intelligence.

Even now, many amateur radio enthusiasts are still passionate about using this method to transmit information, and some can even do it with 1 watt globally.

However, Morse code requires learning, and its corresponding English letters would be even more costly for the people of Bratis Continent to learn.

Fortunately, as times have developed, besides CW, there is now also the SSB mode, which can directly transmit voice.

Li Yu purchased three Yaesu shortwave radios, and following the shop owner’s recommendation, he joined a WeChat group full of amateur radio enthusiasts.

With the help of a master in the group, it took about three days to learn the basic usage of the radio, and then Redio was set up in Green Field Church.

This led to the birth of the first semi-skilled radio telegraphist on the Bratis Continent.

It wasn’t that Li Yu didn’t want to train Redio to be more professional; it was mainly because he himself only knew so much.

Fortunately, his opponents were at least a few hundred years away from understanding this technology, and thinking about this, Li Yu felt much better.

Looking at Redio, he had none of these worries. Although this young man was less skilled than Li Yu, he was blissfully unaware of his shortcomings. After being taught by Li Yu for two days, he already acted as if he were Wang Chongyang emerging from seclusion.

Moreover, Redio had good reason to be proud; in terms of radio technology, he was indeed the second-best in this realm, second only to Li Yu, the world’s best.

Even Li Yu could not refute this point.

Besides, during his first real-world application, Redio did not disappoint. Hearing the prayer voices transmitted over the radio, Alvo ran outside immediately and found Li Yu, who was in the yard doing maintenance on a tractor.

Li Yu put down the half-bottle of lubricant he had remaining, wiped his hands, and walked into the house.

"Ah, is that you, Redio? Can you copy?"

"This is Redio, Prophet, I can copy, I can copy," Redio’s voice trembled with excitement.

Li Yu was also in good spirits because Redio’s voice came through very clearly, without the group’s complained-about static interference.

"You should have already arrived at Duolin City by now," Li Yu continued.

"Indeed, we are currently outside Duolin City, Prophet," Redio respectfully said.

"Good, hurry into the city. According to the news from Rock Snow City, Priest Martina and her Church Protection Army should be arriving in a few days."

"Actually, this is why I called you; regarding entering the city, we’ve encountered some trouble. To prevent spies from the Church Protection Army from sneaking in and causing disruptions, Duolin City no longer allows free entry."

Redio said, "Nowadays, only those who hold a Passage Order issued by the Raimondi family or the Silver Moon Church can pass through the city gates."

"Ha, I thought it was something major; this is simple."

The speaker this time was not Li Yu but another voice.

Li Yu had brought three radios this time: one was set up at his own residence, one was given to Redio, and the remaining one, Li Yu had placed at Teacup Castle.

It was mainly to facilitate contact with Miss Rabbit in case of any urgent matters.

Li Yu regretted setting it up right away because Ireya ignored the "urgent matters" condition he had specified.

Having a new toy, she loved calling him over the radio when she was idle.

"Merlin, Merlin, are you there?"

"Hmm?"

"Today, I saw a purple sparrow outside—it was so beautiful. I wonder if I’ll see it again tomorrow."

"......"

Or "Merlin, Merlin, are you there? I had carrot and pork stew for lunch. What did you eat?"

And "My Ancient Spirit has leveled up to 95, impressive, right?" and the like.

Li Yu had no choice but to temporarily shut off the radio on that side.

However, he clearly underestimated the Lady, who perhaps played too much with her Electronic Pet Egg and had a knack for technology; she even learned how to turn the radio on and off.

After Li Yu turned off the radio, the Lady could secretly turn it back on.

Since all three radios were set to the same frequency, the Lady had likely heard their recent conversation.

This prompted her to interject.