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Re: [Discuss-gnuradio] Sampling with multiple USRP N210s with one host c

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] Sampling with multiple USRP N210s with one host computer
Date: Thu, 31 Oct 2013 23:06:42 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8

On 10/31/2013 04:54 PM, rmsrms1987 wrote:
Hi Everyone,

I recently discovered that Ettus offer a way of synchronizing up the eight
USRPs with the following clock distribution system:


Out of curiosity, how would one be able to connect and sample with eight
separate USRPs with one host computer.  Would you need eight separate
ethernet ports?  That seems like more than what a typical motherboard would
be able to handle.

Or can the USRPs all be connected to a server, which can be individually
accessed through the host computer?

Understanding how to do this will be extremely beneficial in order to gather
some ideas for a project.

Thank you very much in advance,

You could have all of them on a single port and a 1GiGe switch, depending on aggregate sample rate.

But another thing to be concerned about is how much processing your computer can handle from 8 sample streams.

There are also quad-port 1GiGe cards available out there.

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