[hpsdr] FW: Call for Comments and Discussion - OzyII

[Henry Vredegoor]

It seems my original reply was rejected by openhpsdr.org because of it's
size > 12 K ??

Changed from HTML to plain text and removed part of the original message.
Hope this now works.

Henry.
> 
> 
> -----Original Message-----
> From: Henry Vredegoor [mailto:henry.vredegoor at gmail.com] 
> Sent: dinsdag 21 juli 2009 1:23
> To: 'Steve Bunch'; 'hpsdr at openhpsdr.org'
> Subject: RE: [hpsdr] Call for Comments and Discussion - OzyII
> 
> 
> Hi Steve,
> 
> I did not follow the USRP / GNU radio development for some 
> time, I guess I have something more to read.... 
> 
> A quick scan of the USRP2 Wiki (FAQ) confirms my suspicion 
> that only a limited Ethernet functionality is available on the USRP 2.
> No TCP/IP support, that is what makes it that more 
> interesting for a real networked setup IMHO.
> 
> I wonder as to how fast/efficient the soft-core processor in 
> the USRP2 would be.
> 
> Thanks for the links.
> 
> 73's,
> 
> Henry.
> -----Original Message-----
> From: hpsdr-bounces at lists.openhpsdr.org 
> [mailto:hpsdr-bounces at lists.openhpsdr.org] On Behalf Of Steve Bunch
> Sent: maandag 20 juli 2009 21:31
> To: hpsdr at openhpsdr.org
> Subject: Re: [hpsdr] Call for Comments and Discussion - OzyII
> 
> 
> For those unfamiliar with it, it's useful to look at the USRP 
> 2 at ettus.com (http://www.ettus.com/download for specs) and 
> at GNUradio.org (http://gnuradio.org/trac/wiki/USRP2 for an 
> overview) for background and to see the experience that 
> they've had with this approach.  An Ethernet-connected HPSDR 
> won't have to start from scratch.
> 
> USRP 2 is a 1Gb Ethernet-connected SDR board that comprises a 
> very big FPGA, fast A/D D/A converters, and plug-in front-end 
> boards that do the RF capture/output.  It's an expensive 
> product for a hobbiest, but all the USRP and GNUradio code 
> are open-source and you're encouraged to cherry-pick useful 
> bits of it for your own use.  (In fact, I believe that the 
> Ozy USB interface reuses code from the USRP 1).  There is an 
> open-code 32-bit CPU in the USRP 2 FPGA (available on 
> opencores.org), and Matt Ettus sponsored the productization 
> of the Gbit Ethernet core that was on opencores.  The usual 
> software for USRP 1 or 2 is GNUradio, which is primarily 
> oriented at being a toolkit for developing SDR algorithms, 
> though people have developed complete radios using it.  
> There's a great deal of information on the GNUradio wiki and 
> mailing list about how USRP 2 uses Ethernet, PC-side drivers 
> and software, packet formats being used, etc.
> 
> (Other than using USRP 1's for experiments, I have no 
> connection with GNUradio or ettus.com.)
> 
> 73,
> Steve, K9SRB
>