Immediately afterwards, Xia Duo made another laboratory version of the communication device. After all, how to use the communication device if there is only one? If it is passed directly to a natural person, the recipient must manually unlock the encrypted message, which is very inconvenient.
.
In addition, in order to sell products more conveniently, Xia Duo directly limited that only communication instruments connected through the [Secret Mark of Twins] can communicate with each other. If two people can't even see each other, then long-distance communication is not really necessary.
Of course, on the other hand, the 2-ring [Background Communication] simplified by Xia Duo can also be used, but it can only be used for direct communication between people. It is analogous to a conversation, but it transmits text information.
Next came the actual test. Shado put away the two laboratory versions of the communication instruments and came to Tilak's research room. He first checked their research progress and then called Dean out.
"Come here and help me test a communication device."
"Yeah, okay!" Dean agreed readily.
In fact, he has been so busy these days that he does not know what to do day and night. In addition to experiments on permanent magic, it is more about supplementing his own knowledge. Chateau has provided theoretical knowledge such as arcane geometry to the members of the society.
In this regard, Sami and others are making slightly faster progress.
This made Dean feel pressured, so he used almost all his free time. However, squeezing himself for a long time also made him a little exhausted. This time Xia Duo asked him about something, and he just came out to relax and adjust.
Soon the two passed through the portal and arrived at Savile Town. The first thing they had to test was the communication connection in the normal outside magic network environment.
Xia Duo took out the two laboratory version communication instruments that had just been made that had not been "encapsulated", handed one of them to Dean, and casually cast the [Secret Mark of Twins]. On these two communication instruments
leaving two identical marks at the same time.
If this step is performed by two people together, it may have some ritual significance, indicating that this is the beginning of establishing a relationship between the two people. Of course, it can also be performed by one person.
Dean hasn't learned this spell yet, so it's up to Shado to cast it.
"I'll teach you how to use this communication device first."
The use of the communication instrument is very simple. You only need to activate the communication instrument in a focused state, and then enter text, which exists in the form of light and shadow.
It is said to be text, but it is still projection in essence, but the text projection carries the least information, and a 2-level spell can only do this.
If Dean were an Earthling, he might be able to insert some emoticons into the text to express more complex messages. But so far, Chateau has no plans to introduce emoticons into the wizarding world.
After a while, Dean completely understood how to use this very strange communication weapon, but just when he was about to inspire to use it, Shado stopped him again.
"Wait a moment."
I don’t know if it was due to the influence of the paper-making incident some time ago. Xia Duo is now very sensitive to this kind of thing going on in the outside world. Although the communication device is an "old thing" that already exists, he is still not sure whether anyone is using it.
Predict technological breakthroughs in this area.
But if you are cautious in everything, then don’t do anything.
Therefore, after much thought, Xia Duo decided to put the test to the outside world, but he still had to do some simple protection, one of which was to give Dean the [avoidance of detection] blessing.
At the same time, Xia Duo decided that after communicating with the magic weapon and becoming an arcanist, in addition to the normal "upgrade", the first thing he would do was to study detection spells and anti-detection spells.
This is a bit like electronic countermeasures, reconnaissance and counter-reconnaissance, jamming and counter-jamming in modern warfare on earth.
Taking the initiative can be regarded as a key factor in success or failure.
After doing basic protection work, Shado told Dean to conduct the test after receiving his notification, and then teleported to the north. He teleported as far away as possible, and the place he entered was an unfamiliar forest.
Fuzzy teleportation does not require specific coordinates, but the risk is greater, but it is still generally under control. Generally speaking, mages are not willing to accept spells that are too uncertain.
Based on the direction of the sun, Xia Duo roughly judged which side was south, then flew to a high place and looked south. The earth was flat, and it seemed that he could see the end of the world at a glance.
But the fact is that human vision is limited and becomes blurry beyond a certain distance. In addition, there are various mountains that are far higher than the height of the eyes. In fact, the range that can be seen (clearly) is very limited.
Of course, Xia Duo won't fly too high. The limit of his field of vision is probably the Wolf God Mountain in the south of the Green Pearl Forest.
Based on the size and clarity of Wolf God Mountain, it is theoretically possible to determine the distance, but there is no need for Xia Duo to go to such trouble. He only needs to roughly know that the teleportation is very far, far beyond the range of ordinary communication spells.
He first tried several conventional single-person communication spells, but there was no response from Dean. It must have been that he did not receive anything. If there was no communication circle at the level of the mage tower, Sha Duo felt that it would not be so easy for him and Niya to communicate from time to time.
Just get in touch.
Of course, it is not that there are no communication instruments that can communicate over long distances, but those communication instruments are not based on [messaging]. Many of them are related to projection and summoning, and some are even related to curses.
For ordinary mages, the threshold is extremely high, so they might as well borrow the communication array from the mage tower.
Shado remembered that Mrs. Patty should have a long-distance communication weapon in her hand, which could even contact the Langas people in Savile Town. However, the use of that communication weapon was very limited.
At least it's not like the communication magic weapon made by Sha Duo that can be used at any time.
…
——2 rings [Background communication]·{Start test}
Similar to the fuzzy transmission of [Teleportation], [Background Communication] can also be fuzzy sent, but even fuzzy sending is similar to the precise delivery of big data on Earth.
[Background communication] uses the background fluctuations of the Magic Network to transmit information. It is essentially a very large-scale global broadcast.
The target chosen by Xia Duo is [South, scene, image of Dean]. Within the scope of the spell, although the spell will not automatically search for the target, only those who meet the target can receive it.
Of course, on the other hand, this kind of global broadcast communication is also easy to be intercepted, especially when the number of users is small and it is not encrypted.
If there are more people using it, it will be harder to find specific information.
Based on this, Xia Duo also deduced that in the future there may be monitors specifically targeting background fluctuations in the Magic Network.
In general, encrypted communication is still a major trend, and there is no need to worry about whether communication tools will be sold.