[USRP-users] Newbie Issue

Marcus Müller marcus.mueller at ettus.com
Tue Jul 7 04:40:55 EDT 2015

Hi gsmandvoip,

I don't really think this is a newbie question (I mean, you're not a
newbie, either :) ).
The USRP's oscillator is typically much better than 20ppm. I don't know
your alternative clock source, but that might very well be to blame.
However, what is a "lot of noise" in your case? TX or RX? Resulting SNR?

Best regards,

On 07/07/2015 09:45 AM, gsmandvoip via USRP-users wrote:
> I have used USRP1 + DBSRX1+LNA for a while with modified clock (52
> MHz) in order to work with GSM signals but I use to get lot of noise
> along with my interested signals.
> I want to know which factor is responsible to this noise??
> Is it happening due to 20ppm calibration rate of USRP??
> Many thanks in advance
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> USRP-users mailing list
> USRP-users at lists.ettus.com
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