Software defined radio can be used for multi-standard compatibly. Ideal software radio can convert the RF signal directly into digital signal and all the following operation can be done in software. Thus when the user has to change the protocal, he need only to change the software in the ROM instead of changing the hardware. Because of the limit of the technology, ideal SDR is not pratical. But now some receivers ultilize the digital IF instead of the digital RF to realize the SDR.peichinlim said:What are the uses of software defined radio? How important is it?
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