Do we have the signals for intelligent aliens, but we cannot separate those signals from natural radio noise.

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Do we have the signals for intelligent aliens, but we cannot separate those signals from natural radio noise.

Officially SETI (Search for Extraterrestrial Intelligence)has no contact with aliens, so they cannot ask for help for breaking the signals of the aliens. That means there is no evidence that there is a captured signal from other civilizations in some hard disks. But nothing closes that possibility from the probabilities. There is a possibility that radio telescopes have captured the signal from other civilizations. But it has not separated from natural radio signals. 

During SETI-program astronomers detected billions of signals and some of those signals might be from intelligent civilizations. And this is one of the biggest problems of the SETI-program. There might be signals, what source is the intelligent civilization, but then astronomers must separate those signals from natural radio signals. And then we must realize that the major problem with SETI-program is how to make that separation? 

If we already have contact with alien species, the thing would go easily. We must just send a message and say: "would you please repeat your message"?  But without contact, the separation of the signals is almost impossible. Even if we can separate the signal from the background radiation don't know the purpose of the signal. And in some jokes, the signal can come from the microwave oven of humanoids. So we would not make anything with that kind of signal. 

If we want to crack the code, what the humanoid may use, we should know why the hypothetical civilization sent that signal? That thing would help the code breakers. If the code breaker would even know that the reason for sending the signal is some kind of repairment like the worker asks the drill the codebreaker would make the code-breaking by compiling the word "drill" with the captured marks. But in this case, the codebreaker knows the world "drill".  

But even if we would capture the signal from another civilization, we must face the fact, that if we want to make the code-breaking and open that message, the codebreaker has nothing, what to use for making the matrix. The matrix is used to compile the density of letters with known languages, and that thing is impossible in the case of the alien signal. 

The researcher has no dictionary book of humanoid language, not a single word, what can be used in that kind of operation. So that thing means that the process would be extremely difficult. Breaking code is a little bit more than just solving the numeric system or structure of bytes, which humanoids might use. Humans use a decimal system that bases the number 10 because we have ten fingers. 

But the humanoids might have six or eight fingers, which means that in their decimal system 10 comes after the number six or eight. Or maybe they don't have number ten at all. Maybe those humanoids have the numeric system, which bases the almanac. That means they could have no stable numeric system. 

There is a possibility that their numeric system depends on the number of moons or planets, what they are seeing. So that thing is also very important to find out, but another problem is the language. The researchers require the language that they can see what kind of data the signal involves. And without official contact, we cannot get the dictionary book of the aliens. 

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