“Yes?”Roland couldn't help but rejoice, listening to Barov's tone, it was clear that the facilities were built so simple, "You also heard the signal?"

The so-called tower project is the first step of the radio communication plan - in order to meet the huge antenna required for long waves, the construction department set up a nearly 50-meter-high transceiver tower in the north slope and Yingguangcheng.More than half of the towers are only adult body thickness, so from a distance it looks like a long needle with a sharp fine needle.Coupled with the retractable hydrogen ball towing metal wire, the antenna length can reach more than 100 meters.

In terms of construction difficulty alone, it does not have much to stand for, but the communication tower is a system project, and the transceiver equipment located below the tower is the focus.Because the debugging process is bound to emit electromagnetic waves many times, even if it is a messy signal, it is normal to be caught on the other side in this world without any interference.

"It is, your majesty."Barov replied excitedly, “It does have some sort of wonderful reaction spontaneously, as you say at the moment.”It's just... I don't know if it was caused by Silver Light City."

"I think this question will be answered soon."Roland paused for a moment, “Notifying the Ministers of the Office of Administration to go with them — they should not have missed this opportunity to witness history.”

...

After several years of development, the North Slope Mountain is no longer the first few narrow mountain roads through the steep mining area, wide cement roads and railway tracks along the slope, only a quarter of an hour by train to reach the top of the mountain.

Not far from the tower, there is a row of simple red brick bungalows, and the low eaves are covered with ice angular, which looks far less beautiful than the new factories on the south bank of the Red Water.In terms of appearance alone, it is difficult for anyone to associate it with the "new era".

Entering the house, Anna was conducting the final preparations of the original wonder of the islanders, and saw Roland, who secretly compared to the "everything proper" gesture, and then put another solemn effort into the work.

Roland couldn’t help but open his mouth.

As early as the beginning of the radio plan, the matter caused overheating in the Executive Office.Most people are well aware of the changes that the project will bring to the human world.If the message can be transmitted in real time, it is a great enhancement to the strength of war and the control of Winter City.

Wired telephones, flying messengers, and listening prints are proof that, under the combined effect of the three, the old aristocratic forces of the Grey Fort have found little chance of making a comeback, and many officials have thought that centralization will be a long and repeated process, but the fact is that they have not been able to set off any waves since they were overthrown by the First Army.The reason is that in the face of efficient information transmission, the aristocracy will be destroyed by the Second Army and even the police force as soon as it reveals a little, and even the space for brewing and development has not been left.

But the phone has a root line, and the latter two are related to magic, and officials barely understand it.But the tower project not only does not have any line connection, but also the theoretical effect is stronger than the magic of the creature, which really makes people feel a little incredible.Although there is a basic introduction to electromagnetic waves in the primary education textbook, which can be learned and learn, many people still have doubts about this invisible and touching thing.In a sense, it is more than animaginary than a biplane.

Of course, this hot discussion will not affect the actual progress of the project, after all, under the guidance of Roland, these years in the winter city can be called a miracle is too much, even if he suddenly announced that he will go to the red moon, the administrative department will go all out.

But radio is not his specialty after all, the grasp is not as big as the research and development of mechanical equipment, this set of transceiver device is completely from the gray castle design bureau prototype, the actual effect of no one is not clear.With Anna's gesture, he had no need to worry about being embarrassed in front of the ministers.

“Then, let’s start.”

Roland took Anna's hand and led her to the transmitter.

“Oh, Roland?”

"It's the crystallization of the engineering department, and of course you're the first tester."He blinked at each other.Although she had already been known in advance to confirm the feasibility of communication during the commissioning process, it would have been recorded in the annals of history, and it must be the next formal test.

“There’s another receiving location, which of you guys would want to be the first to experience?”

Barov and the others looked at each other and raised their hands, “Your Majesty, let me come!”

After some scramble, the boss with the deepest qualifications, successfully killed from the crowd, became one of the "first" long-distance telegraph communication testers.

In theory, the transmission and reception of the telegraph can be completely done by one person, but it is obviously easier to verify the test results at this time - the most important point for people who have never seen the radio is how to convince them that the other side of the sea from hundreds of kilometers away really receives the information transmitted here?The simplest way is to let an unwitting receiver report information that should only be known to the sender by electrically.

Roland briefly recounted the test method and let the guard blindfold Barov's eyes.Anna was on a small blackboard to point three horizontal two points, representing the long voice, the dot representing the short sound.

When everyone was sure, she pressed the transmitter’s electric key.

“Three long and two paragraphs.”

The moment the circuit was turned on, the bright blue light bloomed in the middle of the spark gap.

Since the electric key is not connected to the buzzer, there is no movement in the room except this light.

Everyone can't help but hold their breath, this arc is so small, standing outside the house is afraid it is difficult to see, not to mention the city of Silver Light, hundreds of kilometers away.

And Roland couldn't help but have a goosebump.

At that moment, it was as if he felt something pass over his body.

There is no doubt that this is an illusion - in the case of low power, electromagnetic waves will not have any effect on the human body.But in his mind, everything is clearly discernible.The electric fire seems to be fleeting, but the current transmitted is repeatedly oscillating between the inductance and the capacitor, as many as tens of millions of times per second, and the rapidly changing electric field is rapidly opening along the antenna and the ground line, and spreading out in all directions.

In this silent world, it is a crosis of human beings – no one can hear it, but it shines brighter than any sound of the past.

Even after flying hundreds of kilometers, the wave still did not disappear, and was recorded by the antenna of Yingguang City.

There are two receivers.

After an ancient powder detector captures the electromagnetic wave, the metal powder in the glass tube is changed from loose to condense, which makes the resistance in the circuit suddenly decreases, and the bulb that was originally extinguished blooms soft yellow light.Its greatest function is to inform the listener that the crowing is reverberating over the dome.

The other is an ore detector.It does not require any external power supply, always in the state of receiving, a piece of lead ore and inserted wires to form a natural class semiconductor, the energy of electromagnetic radiation in its internal formation of a weak current, must wear headphones to hear the sound.

In the absence of beep modulation, it does not emit a crisp and pleasant ticking sound, but it still accurately reproduces the frequency of transmission.

Then reverse this process.

Distance is no longer a problem, how fast is light, or how light is itself light.

Anna repeated three times and put down the electric key.

According to the agreement, if Silver City receives the message here, it will send an identical message.If it is the conventional way to send a letter, it takes about five to seven days to complete a round trip between the two places, and it takes at least one day to replace it with a flight messenger.

But the moment Anna put down the electric key, the light on the receiver was on.

Just a few seconds before!

There was no stir in the crowd.

Barov, who was blindfolded, did not know about it, and listened for a long time, and finally slowly wrote down the message he heard on the paper.

When he took off his headphones and blindfolds, he no longer had to ask about the test results - from the surprised eyes of the crowd, the answer was self-evident.

The sign on the paper is three sides!