Mobile Phones

I don't know much about mobile phones.. I have a question here..

I know that mobile phones always emit a certain kind of signal, but does that signal varies when that mobile phone sends text message?
Does a mobile phone emit a different/ distinguishing signal when it sends text message?

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JimB

JimB said:

You have already asked this question.

Do you think that asking the same question will get you a different answer?

JimB

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yeah, but it does not really answered my question.