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Re: [Discuss-gnuradio] [USRP-users] Setting the Decimation Factor in GNU


From: Ian Buckley
Subject: Re: [Discuss-gnuradio] [USRP-users] Setting the Decimation Factor in GNU Radio for USRPN2920
Date: Tue, 1 Apr 2014 22:38:57 -0700

The N2920 is derived from N210, it uses a USRP2 clocking architecture with a fixed 100MHz ADC/DAC clock and *ONLY* supports integer decimation rates. Decimation rates that factor by 4 are preferred as they provide a much flatter passband.

-Ian


On Apr 1, 2014, at 10:10 PM, Amber and Sarosh <address@hidden> wrote:

Hi,
Can anyone please guide us where can we set the decimation factor for the USRPN2920 within GNU radio scripts so that when we run the uhd_usrp_cfile , it can gather data at any given sample rate (<=100MSps, the clock rate for USRPN2920). As, in our GNU radio software, after running uhd_usrp_cfile with sample rate parameter value of anything > 5.88MSps, it is giving UHD warning notice that the requested RX sample rate is not supported by the hardware. 


Regards,
Naheed, Amber & Sarosh
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