I haven't done it for a long time, Duke's feel is a lot more rusty than when I was in the laboratory, the first set of products is progressing to about 60%, when soldering a capacitor, my hand shook slightly, gently touched the circuit board, and soldered the circuit board out of a big hole, and then emitted a wisp of unpleasant green smoke, directly scrapping a board.

Fortunately, Duke was mentally prepared and took out the second board and continued to work without being discouraged.

This time the preparation was a little more sufficient, and after each part, Duke would rest and concentrate for a while before doing it, and slowly Duke began to gradually find some sense of it, and the whole product was about to be completed in one go.

I have to say that there are too many places that are lacking in the layout of this thing designed by Billem, and there are many places where the wiring is quite unreasonable, which makes the production process requirements too high, and although Duke is cautious, he still can't avoid the tragedy of accidentally destroying a board.

It wasn't until the seventh board that Duke was finally finished, successfully completing the first complete test piece on a 20 cm wide and 30 cm long circuit board, densely packed with various electronic components.

Duke was satisfied with the 6-volt low-voltage power supply and began to test the power-on, but as soon as the power supply was turned on, several components of the circuit board immediately emitted a burst of green smoke and burned again in an instant.

Looking at the results of most of the hard work and scrapping it again in the blink of an eye, Duke couldn't help but feel a little broken. After careful inspection, I found that the power supply voltage just connected was correct, but the current was a little larger, and many components were very sensitive to the current, and this excessive current directly burned this kind of sensitive components.

I didn't expect Billem's design to be so ugly, he didn't even design a protection circuit, just such a small negligence caused the entire board to be scrapped again, smelling the smell of burning, looking at a large number of scrapped boards in front of him, Duke wanted to cry without tears, but the buddy was quite well prepared, and directly prepared ten boards to try his hand, otherwise it would be completely in vain today.

Now it seems that the design of this telecommunication device in Billem is too bad, even in Duke's current vision, Duke can now conclude that the design level of Billem's thing is too amateurish, and it is definitely not a work under the level of alien technology, and it is weaker than the circuit graduation design of a master's degree in communications, and it feels like a project assignment that cuts corners.

It seems that Billem still has a big lack of learning about communication technology on the earth, perhaps because Billem feels too backward after reading some of the materials, so it is boring.

Although Duke admits that he has genius ideas in principle design, in terms of product process design, Duke feels that what is made according to the Billem design can be used as a prototype verification at most.

This thing is extremely fragile, and if you want to get a product that can run stably for a long time, you must completely reconstruct the design after completing the verification of the prototype, otherwise you don't know how much trouble this thing will have to bring to you.

I would unconditionally believe that this thing from Billem is perfect, it's really stupid and naïve, thinking of what happened before, I seem to get it from Billem, none of the things I seem to get from Billem can be produced and manufactured directly according to the design to be practical.

What's more, it's still such an experimental specimen that was obviously made in a hurry.

There is really no reason to drop the pie in vain, and the semi-finished thing thrown out by Lem is enough for Duke to toss for a long time, however, from the perspective of the prospect of this technology, it is still much more advanced than the current two mainstream technologies of WIMAX and LTE, and if it is perfected, it may be able to provide better wireless transmission services with less bandwidth and fewer base stations.

Duke worked patiently until it was almost dark, and finally finished a complete product again before the ten boards were scrapped, this time Duke made a list of all the precautions and carefully checked it three times before connecting the power supply with the correct voltage and power.

The three beeps that rang out from the circuit board buzzer made Duke feel as comfortable as if he were listening to the sounds of heaven. Because these three tones indicate that the long-range wireless communication device is at least powered on and self-checked, Duke finally succeeded in making the first product according to the design provided by Billem.

In terms of appearance, the final product is full of all kinds of components, much more chaotic than a hand-assembled transistor radio, and it does not look like a high-tech product at all.

Thinking that the company's laboratory was submerged in high-rise buildings, Duke decided to take this thing home and try it, after all, his villa is in the suburbs, relatively speaking, there are a lot less barriers in the middle, to be honest, now Duke has less hope for this thing in Billem, whether it can be used or not, his heart is completely uncertain, in this case, the external conditions can be improved as much as possible.

Duke connected this thing to the computer, let Kerry implement the Billem's modem algorithm program, and burned it into this ugly-looking communication device, completing the last step of software preparation, and now except for the lack of shell, this communication device is completely implemented according to Billem's design requirements.

Theoretically, after connecting this thing to a network routing device that goes online, Bilem will be able to access the Internet through this thing.

After finishing this thing, Duke said hello to Zhao Jianwu, declined Zhao Jianwu's invitation to dinner, Duke hurriedly returned home with this thing, he left a nanny at home, just order noodles or something to deal with, there is no need to eat out and delay time.

He is now anxious to solve the problem of Billem, after this thing is made, Duke will try it like Billem for the first time, to see if it can be connected remotely, if it can be connected, it means that there is no problem with this thing in principle, then the rest of the work, Duke is mainly to improve the design process, add some necessary protection circuits and other fault-tolerant precaution design.

Originally, if the production success rate of this thing was higher, Duke could produce two sets of systems to test it first, but unfortunately it was too difficult to design and produce circuits than Lem, and with Duke's current level, it was already the limit to be able to waste seven or eight circuit boards a day, and finally make a complete set of products.