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Re: [Discuss-gnuradio] [USRP-users] Is it possible to read the ADC sampl

From: Nick Foster
Subject: Re: [Discuss-gnuradio] [USRP-users] Is it possible to read the ADC samples before the downconversion from the USRP?
Date: Wed, 15 Aug 2012 09:52:06 -0700

There is generally no IF on a USRP: it's all baseband, even at the ADC. That said, you need decimation in order to fit the full-speed baseband data over the 1Gbit (or USB) link. There is an existing user FPGA modification somewhere that buffers full-speed baseband data into the SRAM on an N210 for later retrieval. What exactly are you trying to do?


On Wed, Aug 15, 2012 at 9:38 AM, Alex Zhang <address@hidden> wrote:

I want to collect the samples of the USRP at the IF instead of the baseband, so is there any way to read the ADC samples directly without downconversion, at the PC? 
I do not want to touch the FPGA.


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