Amid the anticipation of the group, the car soon arrived near Lizheng Hall.
As the car got closer to the Lizheng Hall, the electric noise from the car radio became louder and louder.
When the car stopped in front of Lizheng Hall, the crackling sound of electricity finally turned into Li Lizhi's clear call.
Compared with the doubts and curiosity of other little princesses, Li Lizhi is more aware of the benefits of establishing communication channels between the Tang Dynasty and the modern era.
It was also because of this that she began to call continuously as early as when Zhou Yu brought the little girl to the Tang Dynasty.
At first, Li Er was busy wreaking havoc in the Imperial Garden and couldn't hear the call from the car intercom at all.
If all the sisters had not been around when she communicated just now, she would have suspected that she was hallucinating.
Fortunately, several of her sisters were also very curious, so she persisted.
Later, as the car driven by Li Er got closer and closer to the Lizheng Hall, Li Lizhi's walkie-talkie also began to make an electric sound.
As a result, Li Lizhi's calls became more frequent.
After confirming that he could really hear Li Lizhi's call, Zhou Yu grabbed the intercom and excitedly said, "Lizhi, can you hear me?"
"Yes, although there is some noise, it is much clearer than before."
As soon as the words fell, Li Lizhi's excited voice came from the speakers.
She knew that what she had hoped for had come true.
In the future, even if Zhou Yu and Xiao Sizi are not around, the two time and space can still have direct conversations.
If we can find the reason for the signal transmission, it is not impossible to connect to the Internet in Datang.
Thinking of the impact of this incident on the Tang Dynasty, she was so excited that she almost cried.
The little girl next to Zhou Yu was originally just curious, but when she heard her sister's excited voice, she immediately came to the microphone and shouted excitedly: "Sister, I am Sizi, can you hear me?"
"Yes, yes, yes, sister can hear you, Sizi, where are you?"
The establishment of communication between the two time and space was like breaking the barriers of civilization, making Li Lizhi fall into excitement.
While answering the little girl excitedly, he also asked her the details she wanted to know.
The little girl, who was also very excited, cooperated very well and told her the situation here.
When Li Lizhi heard that the place where communication could be established was in Lizheng Hall, she was both happy and surprised.
She was happy that Lizheng Hall was located in the harem, which was a very reliable place.
Surprisingly, the place where the communication was established this time was not near Xiao Sizi's bedroom.
You know, Xiao Sizi's bedroom is the place where the journey through time and space first began.
Although she was confused, she didn't ask any more questions.
After all, the time travel is a secret between Zhou Yu and Xiao Sizi.
As long as the two time and space can establish normal communication, it doesn’t matter if you don’t know some things.
While Li Lizhi was thinking about these things, Li Shu, Yuzhang and Chengyang had already spoken to Xiaonaituanzi separately.
During this process, Zhou Yu also asked Li Er to move the car in a small range.
After some attempts, we finally found a location with the best signal.
After stopping the car, Li Er couldn't wait to get out and check it out.
He was very curious why this place had the best signal.
Unfortunately, he walked around the car and didn't find anything strange.
After taking a look at the bluestone road under his feet, he waved his hand and prepared to ask Zhang Ananda to send people to dig.
Seeing this, Zhou Yu quickly waved his hand to stop him.
Li Er didn't know the principles of signal transmission and propagation, but as a college student he knew a lot about it.
To put it simply, signals are the transmission, transmission and reception.
Now that the transmitting and receiving positions are fixed, it can be basically concluded that the problem lies in the propagation.
Thinking this in his mind, he immediately looked up and looked around.
This look really made him see the clue.
Although Lizheng Hall is not the tallest building in the harem, it has the most lightning rods.
On the roof of the Lizheng Hall, there is not only a lightning rod that reaches straight into the clouds, but also a lot of metal surrounding it for conducting electricity.
I just don't know whether these lightning protection facilities have always existed or were rearranged after learning about modern natural knowledge.
But all in all, it is precisely because of these lightning protection facilities that the walkie-talkie signal nearby has become very good.
After finding the key to the problem, the first thing Zhou Yu had to do was naturally to expand this advantage.
Fortunately, a solar power supply system has been installed on the top of the Lizheng Hall, so we don’t have to worry about power supply issues when installing the receiving antenna.
After deciding on his idea, Zhou Yu couldn't wait to return to the modern era.
When it comes to the performance of intercom equipment, intercom equipment with a signal transmission base station is naturally safer and more stable.
If this thing is placed in the center of a small city, the signal range can even cover the entire city.
Of course, for this level of intercom equipment, signal performance is only basic, and the most critical thing is its encryption.
You know, this thing may very well be a communication tool between two time and space in the future. If the channel of the walkie-talkie is cracked or invaded, it may be directly exposed.
By then, even if others don't believe it, they will always be suspicious.
If you happen to meet someone with ulterior motives, it will definitely be a huge trouble.
In addition to the intercom equipment, Zhou Yu also specially purchased two small iron towers.
These two iron towers are the signal towers he chose for the intercom equipment.
Fortunately, there is the universal Internet shopping platform. After some purchasing and tinkering, the devices in the two time and space were finally started at the same time.
With the support of high-performance equipment and a powerful signal tower, the two time and space completed the channel networking after just simple debugging.
As Li Lizhi, who was in charge of the modern city, shouted the slogan of network testing, not only the Lizheng Hall and Taiji Hall, but even the Xiaoxiiu Supermarket in the East City could clearly receive the message.
In accordance with Zhou Yu's request, each place communicated with Hyundai to confirm that there were no problems with the signal and communication.
As for the communication between different places in the Tang Dynasty, it was even clearer, just like face-to-face communication.
Playing with the walkie-talkie in his hand, Li Er's old face almost turned into a chrysanthemum with laughter.
Since the entire Chang'an City can communicate through walkie-talkies, doesn't it mean that I can make a lot of money by just selling some walkie-talkies and opening up the extra channels?
Although this thing is not as smart as a mobile phone or a PHS, and it cannot make one-to-one calls, as long as you put it out for sale, there will definitely be a large number of people flocking to buy it.
Thinking this in his heart, he immediately rubbed his hands and looked at Zhou Yu.
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