Topband: SDR/DSP pulls out signals HOW FAR down in the noise?

[Greg - ZL3IX]

Hi Mike,

Perhaps not quite what you were after, but I have found that the new DSP 
Rx at my remote 160m site works better than any analogue Rx I have had 
there.  I am using a modified Mercury PCB from the HPSDR project.  HPSDR 
usually needs PowerSDR running on a PC for the back end of the Rx, but I 
have modified the FPGA code and put the complete Rx in there (so I don't 
need a PC)

The linear phase filter is much better than the analogue Xtal filter I 
was using before, in that it recovers from QRN bursts much faster.

73, Greg, ZL3IX

On 2010-12-20 18:19, Mike Waters W0BTU wrote:
> Hello Topbanders,
>
> Has anyone used DSP and/or and SDR to receive extremely weak signals on 160 that
> are buried in the noise?
>