Re: [Discuss-gnuradio] Re: USRP2 questions

2009-03-16 Thread Matt Ettus
Kyle Jamieson wrote: Scenario 3 - An arbitrary number of USRP2 systems, no MIMO cables, no HUB Some means of providing the same 10 MHz reference to all USRP2 systems must be set up. Typically this would be the 10 MHz output of some lab reference like a GPS-locked reference. That reference would b

Re: [Discuss-gnuradio] Re: USRP2 questions

2009-03-12 Thread Kyle Jamieson
Scenario 3 - An arbitrary number of USRP2 systems, no MIMO cables, no HUB Some means of providing the same 10 MHz reference to all USRP2 systems must be set up. Typically this would be the 10 MHz output of some lab reference like a GPS-locked reference. That reference would be put through some s

Re: [Discuss-gnuradio] Re: USRP2 questions

2008-11-14 Thread Matt Ettus
Michael Ossmann wrote: On Thu, Nov 13, 2008 at 11:26:31PM -0800, Matt Ettus wrote: A dual USRP2 system does not need a hub, only a cable. A quad USRP2 system would need a hub unless you were willing to have 4 ethernet connections to the host computer. I was under the impression that

Re: [Discuss-gnuradio] Re: USRP2 questions

2008-11-13 Thread Matt Ettus
Quoc Lai wrote: Eric Blossom wrote: On Wed, Sep 17, 2008 at 01:48:34AM +0300, Juha Vierinen wrote: What does it mean that USRP2 can only do MIMO with eight receivers? What are the options for doing MIMO with, say 16 receviers? You would need to design and build some kind of hub

[Discuss-gnuradio] Re: USRP2 questions

2008-11-10 Thread Quoc Lai
Eric Blossom wrote: > On Wed, Sep 17, 2008 at 01:48:34AM +0300, Juha Vierinen wrote: >> What does it mean that USRP2 can only do MIMO with eight receivers? >> What are the options for doing MIMO with, say 16 receviers? > > You would need to design and build some kind of hub that would provide > th