Jiang Zi hung himself on the top of the tower with a safety rope, then opened the toolbox, and under his feet was a twenty-meter-high ladder, and the light at the bottom of the tower had turned into a series of small dots, and he felt like a maintenance worker of the national power grid, repairing a wind turbine.

The integrated RF antenna is not a traditional parabola or hanger, it looks more like a large piece of cream chocolate - at least Jiang Zi thinks so, all the array antennas are integrated on a flat plate, which is about the size of a square meter, and is responsible for all the communication between the Cassini station and the outside world, and the huge Starlink in low orbit is responsible for receiving all the signals sent by the Cassini station and sending them to Earth.

The ice ejected from the volcano broke through the windshield and then smashed on the antenna, Jiang Zi saw the broken ice all over the ground, and the panel antenna was smashed out of a depression, but the real fatal thing was not the huge impact - the antenna array on the communication tower was composed of 10,000 high-frequency communication units, each of which could work independently, that is, even if 10,000 communication units were damaged by 9,999, the remaining last one could still guarantee contact.

The real cause of the communication interruption was that the ice smashed the antenna's thermal insulation system - the shallow pit meant that the internal insulation material of the antenna was broken, the antifreeze leaked, the heat exchange cycle was suspended, the precision semiconductor radio frequency unit was exposed to a low temperature of minus 1780 degrees, and 10,000 millimeter-sized gallium arsenide chips were wiped out in an instant.

Jiang Zi took out a screwdriver and carefully disassembled the casing of the array antenna.

"Sure enough, they all froze and cracked." Jiang Zi flicked the integrated circuit substrate with his fingers, turned on the headlamp and looked carefully, "It's not a good thing to be too advanced and too precise, it's too fragile, and if something goes wrong, it's a pot." ”

He used a brush to clean the hoarfrost on the circuit board, "In the past, the old array antenna was used here, the signal transmission and the antenna were separated, the transmitter was placed at the bottom of the tower, the antenna was placed at the top of the tower, and the middle was connected with a waveguide. ”

"In fact, there are more advanced communication chips." "It's just that they can't withstand the harsh environment on Titan." ”

"If it weren't for the fact that it was always raining in this place, we could have used lasers." Jiang Zi said, "What do you see this thing has frozen? No matter how awesome the technology is, it doesn't matter if you are gallium arsenide or graphene, it's so simple for God to cure you, minus 180 degrees, everything will freeze into a stupid fork. ”

Jiang Zi carefully examined the communication antenna in his hand, and there were 10,000 RF modules neatly arranged on the substrate, one hundred long and one hundred wide, forming a square of almost one square meter in size, and he checked them one by one, hoping to find one or two that could be rescued with half a breath.

Dabai is also evaluating through the camera on the Iron Floating Massacre, Dabai is the most professional communication engineer in the station, compared to which Jiang Zi can only be regarded as a repairman, but Dabai can't hold a screwdriver.

"Stationmaster, what's going on?" Lou Qi asked.

"The situation is not very optimistic, and I guess they have all been sacrificed." Jiang Zi's neck was a little sore, he raised his head and moved his shoulders, his upper body reached into the top of the tower, his legs were on the ladder, and two safety belts were crossed under his ass to form a simple hanging basket, Jiang Zi just sat on the hanging basket, hanging in the air at a height of twenty meters, "The windshield has been smashed into a big hole, and we have to mend the roof first." ”

"The windshield was smashed through?" Lou Qi was a little surprised, "That's bulletproof." ”

"What about bulletproof? The opponent used a 250 mm cannon. ”

Jiang Zi stretched out his hand and pulled the muddy ice over, and knocked it gently, I don't know what it froze, it may be a mixture of certain hydrocarbons, frozen extremely hard in low temperatures, if this thing moves at high speed, it is definitely no less powerful than a cannonball—the naval guns on the sail warships of the Royal Navy of the British Empire in the seventeenth century are no more than that.

"What about the communication module? Is it possible to return to work? ”

"These chips are not as big as my fingernails, and I can't take them apart when they are all packaged." Jiang Zi said.

"You can't do anything about it, the three-dimensional circuits inside the chip are only five nanometers thick, and you have to use a scanning electron microscope to see them." Great white reminder.

"Looking, watching." Jiang Zi took out the automatic detection box and plugged in the interface, the giant stereo integrated circuit could not be detected with the human eye, even if the thinnest needle tip was as large as a space warship compared to these printed circuits, Jiang Zi could only use automatic detection equipment and the same sophisticated tools to deal with them.

"Sharpen the scissors, ...... the kitchen knife" Jiang Zi pressed the button, and the indicator light began to flow.

His old god sat in mid-air on the ground, thinking about how to fill the hole in the windshield.

"Is it okay to use clear glue and plastic bags?"

"Impossible." Lou Qi said, "I can't withstand the strong wind." ”

"How about using all-purpose glue and sacks?"

"Impossible."

"What materials did Nuwa use to mend the sky back then?" Jiang Zi asked.

"Use multicolored stones, and if the multicolored stones are not enough, use her own body." Lou Qi said, "Stationmaster, do you want to sacrifice yourself to plug that hole?" ”

"Then I recommend using the buttocks." Dabai said.

After the test, Jiang Zi glanced at it.

"Sure enough, it's all scrapped, which is a bit of a problem."

"There's no room for rescue?"

"It's completely cold." Jiang Zi shook his head, "With the conditions in Cassini Station, this thing must not be repaired, and it must be sent back to Earth for the Chrysanthemum Factory to repair." ”

"Call the Chrysanthemum Factory and ask them to send someone to pick it up, don't they claim a year-round warranty in the solar system?"

"The communication is all lost, how are you calling?"

"Next time, I suggest they come here and build a warranty point." Lou Qi said, "Is there any spare in the station?" ”

"Yes." Jiang Zi replied, "The old-fashioned passive array antenna is placed in the warehouse, as a backup for this system, but it is a bit troublesome to install, one person can't handle it, at least two people are needed." ”

"Can you get it done today?"

Jiang Zi estimated the time, "It's impossible, we can't finish it today, we have to check the status of the spare antenna first, and then transport it here to replace it, and we have to complete the commissioning, it will take at least two days, and it will start working tomorrow, and it will be all done the day after tomorrow, which is still the most ideal situation." ”

"Understood, stationmaster, come back first, we'll make a plan to replace the backup system, and we'll talk about it tomorrow."

Jiang Zi dismantled the scrapped array antenna and tried to take it down, but the square shell of one square meter size was really difficult to hold, Jiang Zi was not holding it in his arms, nor was he carrying it behind him, the space in the communication tower was already narrow, and accommodating an adult had been constrained everywhere, so Jiang Zi had to leave it at the top of the tower.

(Author's gossip: I took another pill of ibuprofen, my headache improved a little, and I barely finished writing a chapter.) ）