RPAGF Chapter 915 Even without the program, it still boots up!
Chapter 915 Even without the program, it still boots up!
There's really nothing surprising about that.
If we turn back the clock to the early 1960s and examine this from a higher strategic perspective, we can understand the inevitability of this arrangement. At that time, the pressure on our maritime borders was increasing daily, with underwater threats being even greater than those on the surface. Establishing reliable underwater early warning and detection capabilities was crucial to the security of our national borders.
As you can see, the US Navy's Polaris nuclear submarines are patrolling the Western Pacific with nuclear weapons, the Soviet Union's Whiskey-class submarines are sneaking into coastal waters for reconnaissance from time to time, and even Japan's Hayashio dared to sneak in to conduct nuclear test monitoring!
However, my country's anti-submarine forces are like "hunters without glasses".
The ship's sonar is an old model from World War II, and it can't even detect low-frequency noise below 20 Hz!
Anti-submarine warfare by aircraft relies entirely on visual observation, and on cloudy days, they just circle aimlessly. They don't even have a systematic database of the basic noise characteristics of enemy submarines.
Well, don't you dare tell me to send the KJ-1, which that silly kid messed up, to catch big black fish in the deep sea. I'll laugh at you if you say that.
Professor Shih-E spearheaded the development of an underwater acoustic testing range, aiming to equip the nation with "underwater eyes that can see a thousand miles." By testing the noise frequencies, propeller speeds, and hull vibration patterns of different ships, they are establishing their own "submarine noise archives"!
With this archive, anti-submarine ships can accurately lock onto targets in the vast ocean, and torpedoes and depth charges can be "targeted"; with this archive, our own submarines can know "how to conceal their noise" and avoid being detected by the enemy.
This time, the "Hayashio" was captured by accident, but what about next time? If the US nuclear submarine comes again, we can't always rely on "luck" to let the other side hit us, can we?
The underwater acoustic range is a "preliminary training ground" that can enable my country's anti-submarine forces to shift from "passively being attacked" to "actively providing early warning."
Therefore, even though the conditions at the temporary firing range in Dalian were harsh, and even though the establishment of the firing range there hadn't been officially confirmed, the relevant departments still allocated one of the only three single-board computers in the country!
This machine can quickly process underwater acoustic signals and compare various measured parameters, increasing testing efficiency by more than tenfold.
Motherland's concern is not just lip service; it means investing the most precious resources in the most critical areas of national security.
Junichiro's equipment will undoubtedly provide unexpected assistance to the Chinese underwater acoustics industry, which is still groping in the fog!
Thinking of this, Jiang Xia covered the single-board computer with the rain cover again, feeling full of energy again. He turned around and shouted to Yang Shi'e, "Teacher Shi'e, what should we do next? Connect wires or solder? I'm incredibly skilled with my soldering iron now, I can solder things quickly and... well, very solidly!"
Teacher Shi'e and Teacher Xuhua were unfolding a sketch filled with wiring diagrams when they heard this. They looked up, adjusted their glasses, and smiled with satisfaction: "Good! Comrade Xiao Jiang is very enthusiastic! You've come at the right time, come and take a look!"
"This core circuit needs to be soldered to connect the preamplifier of the small notebook's underwater acoustic system to the signal interface of the single-board computer. This is a delicate job, and we'll have to rely on you, 'Big Yellow's dad,' to do it!"
"Although there's no corresponding program for the notebook, the single-board computer should still be able to handle the basic data extraction!"
Indeed, there are no universal interfaces or hot-swappable gold fingers nowadays; you really need to solder them to connect!
Therefore, Jiang Xia's initiative to volunteer relieved Professor Shi'e.
After all, he's "Big Yellow's dad," so his skills must be top-notch!
"No problem! Just watch me!" Jiang Xia patted his chest as he accepted the task, brimming with confidence.
Scanner on!
For a moment, the tent was filled with the peculiar smell of pine resin and a hint of burnt plastic. Teacher Xu Hua curiously came over to observe the craftsmanship of the "Father of Rhubarb," but after just one glance, the corner of his mouth twitched involuntarily.
The solder joints were of varying sizes, some as big as mung beans, others as small as sesame seeds, all crammed together. Several solder joints that should have been separate had been boldly joined together by Jiang Xia with a large clump of solder into a "tin lump." Exposed copper wires stood out in clumps, and the insulating tape was wrapped around them as thick and clumsy as an injured finger.
Overall, the welded joints looked like several lumps of dried, unevenly deep chicken droppings, a truly appalling sight.
“Uh… Comrade Xiao Jiang…” Teacher Xu Hua tried to make his tone sound tactful, “Your welding skills… um… have a very… very rugged and unrestrained style.”
Jiang Xia looked up, his face still flushed from focused concentration. He glanced at his "work," then at Teacher Xu Hua's indescribable expression, and scratched his head somewhat embarrassedly. But then he straightened his neck and tried to defend himself: "Teacher Yang, Teacher Huang, don't just look at the appearance! I admit, it... it's not very good-looking, but!"
He patted the largest lump of solder hard, making a dull "thump" sound, and said confidently, "But it's sturdy! I guarantee there won't be any loose connections or short circuits! The signal transmission will be absolutely stable! We're doing scientific research and testing here, not participating in an electronic arts and crafts competition. Usability is the most important thing!"
As he spoke, he continued to pat the board forcefully, and the solder joints actually didn't come off.
Teacher Shi'e was also dumbfounded. He stared at the pile of "chicken shit solder joints" and then looked at Jiang Xia's self-righteous face, wondering to himself: Is this the legendary "computer genius"?
But then I thought, Jiangxia must have something special about it to have managed to produce "Big Yellow". Maybe there's some trick to this "ugly weld".
snort!
This is Da Huang's father. Don't you know how useful Da Huang's next generation, Little Huang, is?
Since Da Huang's dad said it's usable, it must be pretty good!
It's a bit ugly, but it's not a big deal!
Ultimately, it was Jiangxia's reputation as "Big Yellow's Dad" that played a decisive role. Teacher Shi'e decided to trust in the tenacious vitality of this solder joint.
"Alright! Everyone, get to your positions!" Teacher Shih-E rallied his spirits and began directing the final preparations before the test.
It must be said that conducting tests at this rudimentary firing range in the early 1960s was a project that required a great deal of ingenuity in its "piecemeal" approach.
The core "brain" is naturally the military-green single-board computer, which is carefully placed on the most stable table inside the tent. The power cord is directly connected to the humming 200cc gasoline generator outside through a voltage regulator to ensure that this most precious component receives the most stable energy supply.
The precision components salvaged from the "Early Tide" have now become the "sensory nerves" surrounding the "brain." The preamplifier and filter module, which Jiang Xia had meticulously soldered, were barely secured to a wooden board with screws, and then connected to the input port of the single-board computer through a bundle of cables that looked somewhat messy but were guaranteed by Jiang Xia to be "absolutely unobstructed."
The underwater acoustic receivers, reassembled on the temporary frame, were carefully escorted out of the tent by two soldiers. Using a long pole, they slowly lowered the sensitive device into the test area marked by buoys. The waterproof cable connecting the receivers, like an umbilical cord, extended from the water back to the tent and finally connected to the front of the system.
To "see" the underwater sounds, an old-fashioned oscilloscope with a somewhat worn casing was moved next to the single-board computer. Its cathode ray tube screen was the key window for understanding the signal pattern, and a shielded cable connected its probe to the signal output terminal of the single-board computer, waiting to convert the invisible sound waves into a dancing trajectory of light spots.
At the other end of the workbench, a more "classic" multi-channel pen recorder was already in place. The researchers carefully filled it with ink and checked that the recording paper roll was placed flat.
Several slender ink pens hover above the paper, their task being to record key signal features in the most primitive yet reliable way—by recording ink lines.
The most noteworthy component, however, is the signal conditioner. This unassuming little thing is a master at filtering out noise. Although it's a cobbled-together product, using many parts from old radios, it can "smooth out" the amplified signal, making it easier for single-board computers to read.
Hey, do you remember what that Dr. Mizu from Junichiro's side said about the excessive noise?
Our teacher, Shi E, had already thought of this! A cobbled-together component completely outclassed the rote memorization of the notebook.
It must be said that our researchers back then had incredibly innovative thinking!
……
"Final confirmation of status from all units!"
"Power supply is normal!"
"The signal path... uh... it's a bit ugly, but the path is normal!" The technician who reported glanced at Jiang Xia's solder joints and added.
"Hydrophones have been successfully deployed!"
"Recording equipment is ready!"
"Okay! First hearing test... Power on!"