Forum: GNU Radio please anwer: Changing USRP -UHD- frequency

Posted by Juan Daniel Fernandez Martinez (Guest)
on 2013-03-04 22:50
(Received via mailing list)
________________________________
De: USRP-users [usrp-users-bounces@lists.ettus.com] en nombre de Juan 
Daniel Fernandez Martinez [jdfernandez@icesi.edu.co]
Enviado el: lunes, 04 de marzo de 2013 11:53 a.m.
Para: usrp-users@lists.ettus.com; discuss-gnuradio@gnu.org
Asunto: [USRP-users] Changing USRP -UHD- frequency

Hi everyone,
I need to choose one of this options and I would really appreciate your 
help.
I need to scan a range of the spectrum that is bigger than the USRP 
capacity. In order to solve this, I will scan chunks of the spectrum 
that cover the same spectrum range using several steps.
I have thought in two approaches:
1: use gr.bin_statistics just to change the USRP frequency
2: Build a block to manipulate the variables used by the UHD block (I do 
not know how to change variables values (the ones that are like blocks) 
within a block)

Which one would be better? (easier, efficient)
Thanks

________________________________

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________________________________

Este documento puede contener informacin privilegiada o confidencial. 
Por tanto, usar esta informacin y sus anexos para propsitos ajenos a los 
de la Universidad Icesi, divulgarla a personas a las cuales no se 
encuentre destinado este correo o reproducirla total o parcialmente, se 
encuentra prohibido en virtud de la legislacin vigente. La universidad 
no asumir responsabilidad sobre informacin, opiniones o criterios 
contenidos en este correo que no estn directamente relacionados con la 
Icesi. Si usted no es el destinatario autorizado o por error recibe este 
mensaje, por favor informe al remitente y posteriormente brrelo de su 
sistema sin conservar copia del mismo.
Posted by Josh Blum (Guest)
on 2013-03-05 01:04
(Received via mailing list)
On 03/04/2013 03:49 PM, Juan Daniel Fernandez Martinez wrote:
> I have thought in two approaches:
> 1: use gr.bin_statistics just to change the USRP frequency
> 2: Build a block to manipulate the variables used by the UHD block (I do not 
know how to change variables values (the ones that are like blocks) within a 
block)
>
> Which one would be better? (easier, efficient)

I think developing option 1 would be faster because its a more typical
programming approach and you dont have to understand much of the
gnuradio infrastructure. And I suppose gr bin stats can act as a helpful
reference for you in this case.

-josh
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