Apocalypse: The Primordial Pearl Recognizes Its Master, Starting with Infinite Space

However, even excluding the consumption by local ability users, it would probably take traveling to several cities to gather enough crystal cores to upgrade to the seventh rank.

Lin Chen shook his head.

"Forget it, let's not think that far ahead."

He snapped out of his thoughts and suddenly remembered something else.

"I wonder how well you're learning to operate the shortwave equipment?"

The two communications soldiers left behind by Staff Officer Chen, Wang Lei and Li Mo, should have been teaching the people at the shelter how to operate shortwave equipment these past few days.

Knowing that he might have to go out soon, he knew he had to learn how to use this thing, otherwise he wouldn't be able to contact it later.

Lin Chen stood up and walked towards the door.

I need to go and ask Liang Siqi about the progress; she's the one who's been handling these training sessions.

He walked through the corridor of the underground shelter and arrived at Liang Siqi's workshop.

The door was half open, and a bustling scene unfolded inside.

Hundreds of ordinary team members are busy at their respective workstations, some assembling parts, some debugging equipment, and some recording data.

This place has become a miniature workshop.

Liang Siqi sat at the innermost worktable, intently fiddling with the control panel of a drone.

She frowned slightly, her hand lightly touching the welding torch, so focused that she didn't even notice Lin Chen coming in.

As soon as Lin Chen stepped through the door, Xiao Yu's clear voice rang out.

"Mom, Dad's here to see you!"

Liang Siqi's hand trembled, and she almost poked the welding torch askew.

She looked up and saw Lin Chen standing at the door, a helpless smile flashing across her face.

"Little Fish, can you please stop being so easily startled?"

"I wasn't being dramatic at all," Xiaoyu said with a hint of grievance. "I was just fulfilling my duty to remind Mom."

Liang Siqi was both amused and exasperated. She put down her tools and looked at Lin Chen.

"What brings you here?"

Lin Chen walked over, pulled up a chair, and sat down next to her.

"Let's check on the learning progress of the shortwave equipment. How are those two communications soldiers doing?"

Liang Siqi gestured with her lips towards the outside.

"They're still in that military vehicle outside. Every day, several girls take turns going up to learn, and then they come down to teach others."

"How's your learning going?"

"Pretty fast." Liang Siqi flipped through her notebook. "The first four girls who learned can already operate independently. They've mastered the basics of sending and receiving messages and tuning frequencies."

She looked up at Lin Chen: "What, you want to learn too?"

Lin Chen nodded: "I'm going to learn. I might be going on a long trip soon, so I need to know how to operate it myself."

Liang Siqi looked at him with a hint of inquiry in her eyes.

"Going out?"

"Hmm." Lin Chen didn't say much. "It's not certain yet. Let's prepare first."

Liang Siqi didn't press the matter. She closed her notebook and stood up.

"Come on, I'll show you around the car. Xiaoyue, you guys go ahead with your work, I'm going out for a bit."

The girls looked up and responded in unison.

Lin Chen glanced at Liang Siqi beside him.

"Walking there is too slow, I'll take you there."

Before Liang Siqi could react, Lin Chen had already pulled her into his arms.

The scene before my eyes suddenly changed in the next instant.

The two disappeared directly from the underground shelter and reappeared next to a dark green military vehicle.

Liang Siqi steadied herself by holding his chest and gave him a reproachful look.

"Could you please let me know in advance next time?"

Lin Chen smiled, didn't reply, and pulled her into the military vehicle.

The carriage was not spacious, and various communication devices were crammed into it.

Wang Lei and Li Mo were standing in front of the control panel, guiding four young women step by step.

Several girls huddled together, heads close, intently watching the indicator lights on the dial.

The space felt even more crowded as soon as Lin Chen entered.

"Lord Lin?" Wang Lei was the first to react, and immediately stood up straight and saluted.

Li Mo also turned around.

Hearing the noise, the four girls all looked up and smiled when they saw it was Lin Chen.

"Brother Lin!"

"Brother Lin, what brings you here?"

Lin Chen waved his hand, indicating that they didn't need to be so formal. He then briefly explained his purpose for coming.

Just as Wang Lei was about to speak, a girl with a ponytail next to him spoke first:

"Brother Lin, we just finished our lesson!"

The other three girls nodded in agreement.

"Yes, we've finished our last lesson."

"I've learned all the basic operations."

"Brother Lin, come here, we'll teach you!"

The girls chattered excitedly, their faces beaming with anticipation.

Wang Lei and Li Mo exchanged a glance and tactfully stepped aside, treating it as if these people had finished reviewing the material, allowing them to fill in any gaps in their knowledge.

Lin Chen, on the other hand, was quite composed and walked to the control panel to sit down.

"Okay, then you guys teach."

Lin Chen sat down at the control panel, and the four girls immediately surrounded him.

The girl with the ponytail squeezed to the front, pointing to a row of knobs on the control panel: "Brother Lin, this is the frequency adjustment knob. Turning it clockwise increases the frequency, and counterclockwise decreases it. This is the signal strength indicator; look at the amplitude of the pointer's swing..."

She spoke very seriously, demonstrating as she went.

Another short-haired girl next to her added, "When sending a message, you need to adjust the frequency first, then press and hold this microphone, and release it when you're done. To receive a message, just turn the volume knob on."

Lin Chen nodded and tried it as they suggested.

He pressed the microphone button: "Hello, hello, can you hear me?"

Loosen up.

The carriage was silent for a second.

"Brother Lin, um... you need to tune it to a frequency that people can listen to first."

Lin Chen: "..."

The girls next to them finally couldn't help but burst out laughing.

Liang Siqi leaned against the carriage wall, unable to suppress the smile on her lips.

The girl with the ponytail smiled and adjusted the knob to a fixed position: "This is the communication frequency we agreed upon with the military. From now on, we can use this to directly contact the military in the south of the city."

Lin Chen tried it again without changing his expression.

This time, a noisy electrical sound came from the other end, followed by two "buzzing" sounds, and then someone responded.

Lin Chen nodded in satisfaction and practiced a few more commonly used operations.

After several rounds of frequency tuning, sending and receiving messages, and checking signal strength, I became quite proficient.

The short-haired girl was somewhat surprised: "Brother Lin, you picked it up so quickly. It took us almost half a day to remember it."

Lin Chen smiled and said, "You guys are studying seriously, I'm just playing around."

He stood up and patted the control panel: "Alright, I've got the basics. I'll come back to you for help if I need anything later."

Wang Lei, who had been standing silently to the side, spoke up at this moment: "Lord Lin, in case of an emergency, this red button is an emergency call button. Pressing it will automatically broadcast an alarm, covering the entire city of Guangzhou."

Lin Chen glanced at the red button and nodded: "Understood."

He turned his gaze to the four girls who had just finished their course: "So this is how you graduate?"

The girl with the ponytail nodded, a hint of pride on her face: "Yes, we all passed the last lesson today."

Lin Chen smiled and then looked at Liang Siqi.

"How many people have learned it in total now?"

Liang Siqi was very clear about this number:

"We've arranged for six batches of people to come and learn over the past two days, with four people in each batch. Including those who went back and taught others, there are now 148 people who can operate independently."