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[Discuss-gnuradio] USRP2+WBX - How to use precisely an 8 MHz band?

From: Vladutzzz
Subject: [Discuss-gnuradio] USRP2+WBX - How to use precisely an 8 MHz band?
Date: Thu, 11 Nov 2010 07:46:56 -0800 (PST)

Dear all,
I am trying to receive with my USRP2 + WBX daughterboard a signal band of
precisely 8 MHz in order to measure it's power.
The problem is that since USRP2 has a 100 MSample/s sampling and I can't
just devide it by 12.5 to get the desidered 8 MHz band, I need 
to use an FPGA decimation of 100 together with an interpolation of 8 in
order to get the desidered results 
(I am not using decim 25 and interpol 2, because it is said in the
specification of USRP2 that both parameters have to be at least 4, and
multiples of 4, in order to get the full band).

Is this the only way of going about this operation?

Doesn't this eliminate too much usefull information?

Please let me know if you would this in a different way!
Thank you for your time!

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