[USRP-users] Could this be Ettus X310 self jamming problem?

Ian Buckley ianb at ionconcepts.com
Thu Apr 2 17:22:52 EDT 2015


Try adding  "master_clock_rate=120e6"  (including quotes) to the Device Arguments field in the UHD Sink.
-Ian
On Apr 2, 2015, at 2:13 PM, Trek <trek830 at qq.com> wrote:

> In terms of GRC, how could I adjust master_clock_rate to 120MHz? Is there a setting in the USRP source properties? 
> thanks, 
> 
> 
> ------------------ Original ------------------
> From:  "Marcus Müller via USRP-users";<usrp-users at lists.ettus.com>;
> Date:  Apr 3, 2015
> To:  "Martin Braun"<martin.braun at ettus.com>;
> Cc:  "usrp-users"<usrp-users at lists.ettus.com>;
> Subject:  Re: [USRP-users]回复: Could this be Ettus X310 self jamming problem?
> 
> Try repeating your test with a master_clock_rate of 120MHz rather than 200MHz. This should change the frequencies of harmonics related to the default radio clock.
> -Ian
> 
> On Apr 2, 2015, at 1:42 PM, Martin Braun via USRP-users <usrp-users at lists.ettus.com> wrote:
> 
> > On 02.04.2015 07:16, Trek via USRP-users wrote:
> >> I already did it at 1.602GHz instead of 1.6GHz, same thing except now
> >> the large spike is -2MHz from 0.
> > 
> > This could be a clock harmonic. At 1650 MHz, do you still see something?
> > 
> > M
> > 
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> 
> 
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