Alien Relic Hunter

Chapter 73 Underwater Lost City

The engine on the back of the diving suit began to make a slight humming sound, and the air in the airbags on both sides was expelled at an even speed. With the decrease in buoyancy, Ke Lan began to slowly sink to the depths.

"Di - the first communication test, start now."

Liao Zilang swiped his arm lightly, distanced himself from Ke Lan, and the communication signal between the two began to weaken rapidly during this process, until about 25 meters away, only Zizi was left in the channel. current noise.

"The test is over. At a water depth of ten meters, the limit distance of the AF-6 one-to-one communicator is 22 meters."

The AF-6 type is the most powerful portable wireless communication device they can purchase. On the land of Alpha Star, without strong interference sources and without the use of communication base stations, the limit distance of one-to-one communication can reach 400 More than 22 meters, but underwater, this distance is compressed to only [-] meters.

Electromagnetic waves will be severely attenuated in water, and the seawater of Alpha Star contains a lot of radiation interference. It is not easy to have the data of 22 meters.

As for the acoustic communication equipment, it will also be affected. For example, the miniature sonar carried by Ke Lan has an effective distance of only about 100 meters, which is why they choose the number of 100 meters for their test diving depth.

Liao Zilang swam over and made a gesture of "everything is normal" to Ke Lan, and the two continued to dive.

There is less and less light that can penetrate the sea water, and the surrounding environment is already pitch black.

Ke Lan and Liao Zilang did not turn on the lighting equipment. In this environment, the light source was too conspicuous, and it was easy to attract hunters who were very sensitive to light. Although the darkness was full of unknown dangers, it also can be their disguise.

Of course, they still carry lighting equipment, but this equipment is not for handheld use. This method is too dangerous, which means that they are actively exposing their position. The correct method of use should be to use compressed air to eject the lighting. , when necessary, it can even attract the attention of sea beasts in this way, so as to wait for an opportunity to escape.

But without light, it doesn't mean that Ke Lan is completely blind. Under water, hearing is far more important than vision...

The miniature sonar hung on the belt emits ultrasonic waves in all directions every three seconds, and by analyzing the echoes received, the surrounding environment is depicted on Ke Lan's eyepieces in three-dimensional images, but so far, In addition to seawater or seawater, the only "abnormal object" was Liao Zilang who dived with Ke Lan.

"It's already 80 meters deep, how is your condition?" Ke Lan asked Liao Zilang, although the other party was not wearing a fully enclosed helmet, but relying on the improved underwater throat mic, he could pass through the larynx even without opening his mouth. Vibration to complete the communication.

"Fortunately, I don't feel the water pressure at all." Liao Zilang turned his head down, his arms were close to the sides of his body, and his legs were swaying up and down like the tail fins of fish - unlike Ke Lan, who needed help External force, for him, whether it is floating or diving, it seems that there is no resistance. His body is like a part of the sea water, and the sea water is an extension of his body.

"90 meters." Ke Lan glanced at the depth gauge and began to fill the airbag with gas. Only when gravity and buoyancy were in a relatively balanced state could he maintain a stable depth in the water.

"Have you found anything?" Liao Zilang swam behind Ke Lan and grabbed the buckle on the shoulder of the diving suit-although this was far from his limit, but out of prudence, he had to try his best to To maintain physical strength, the diving suit is propelled by propellers anyway, as long as the crystals are not used up, the power will never be exhausted.

"No, the sonar didn't scan anything. It's still a long way from the seabed." Ke Lan stared at the image in front of him and said, "Now start the second step, exploring the horizontal layer."

　I felt a little uncomfortable today, plus some Calvin, and in the end I only got half a chapter out. The missing half chapter will be made up tomorrow. I can't stay up late because of my health, so I went to bed first, I hope everyone can understand.

　　
　
(End of this chapter)