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So you have the I & Q signals that are at audio frequencies (about what frequencies are they) . . . going into your PC soundcards.

That is for Softrocks, "audio" frequencies up to +/-96KHz depending on the soundcard used as an ADC.
But more modern SDRs send data streams maybe representing a spectrum of 30MHz or more.

I guess that the SDR software uses programming language to do this,

The choice is the writer's. There is no dedicated language.

Best of luck:-) I've never got past just a basic outline of what is involved.

73 Alan G4ZFQ

In the group, Ricardo Suarez was kind enough to send me this link, looks like it has much info.



Al

Let's see if I got this correct . . .

So you have the I & Q signals that are at audio frequencies (about what frequencies are they) . . . going into your PC soundcards.

Once this gets into your PC via the soundcards . . . it gets changed ( detected ) into "usable" content via the SDR software.

I guess that the SDR software uses programming language to do this, does anybody know what programming language?

I know alittle about Python, is it a common language or something new & special for this function, acting as a detector? If it is new language, what is it called?

Does anybody know of a website that explains this all . . . in depth.

Thanks