Wireless Microphone

Well!, I don't know if i can an answer for my question here anyway
I have a wireless microphone which i want to use to send digital data
-not digital audio-, i know that i have first to use DAC then attenuate
the voltage to very small amount -which the wireless microphone use-, i
know all of this only in theory so if anyone have any sites or
suggestions for me to make this in the real life, where can i start
thanks in advance

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