[Elecraft] K4 Sound Card, used for Weak Signal Digital Modes.

Jim Brown jim at audiosystemsgroup.com
Fri Jul 12 16:34:28 EDT 2019


I'm talking about feeding detected audio to the computer for decoding. 
And not all digital formats are the same -- going from one to another 
takes time and processor power, and, depending on how data is encoded, 
may be problematic.

73, Jim K9YC

On 7/12/2019 12:49 PM, Andy Durbin wrote:
> "The spec that matters is the linearity of the A/D at the extremes of the dynamic range."
>
> Jim,
>
> A bit more information please.  Are you talking about TX or RX?  Are you talking about the A/D that is typically in the TX path between the CODEC and DSP of a modern transceiver or perhaps an A/D that may be used in an outboard analog sound interface?
>
> Why wouldn't a smart new rig accept USB audio and feed it directly to DSP rather than converting to analog and back to digital before reaching the DSP.
>
> 73,
> Andy, k3wyc
>
>
>



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