Re: [Discuss-gnuradio] Decreasing Quantization Error

On 10/29/2010 01:14 PM, sirjanselot wrote:
> Hello,
>
> Is there a way to decrease the A/D quantization error for low input signals?
> I've been sending -50dBm to about -70 dBm sine waves to my USRP 1 radio and
> the quantization noise is there.
>
> Is there a way for me to reduce it effectively?
>
> Thanks.
>
>
What daughterboard?

ADCs have notoriously-high equivalent noise figure, which can be
overcome by sufficient
low-noise gain in front of the ADC. The usual daughtercards handily
meet this requirement,
except for the Basic_Rx and Basic_Tx, which have no gain.

--
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org

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