Vijay, Can you post a GRC file with full-duplex configuration? I have the XCVR2450 board so I know I can only get half-duplex. Does the GRC full-duplex flow graph for the WBX board achieve half-duplex for the XCVR2450 board?
Thanks, Johnny On Mon, Mar 14, 2011 at 12:37 PM, Vijay Pillai <vj_pillai2...@yahoo.com>wrote: > Hi Marc, > > How much leakage are you seeing between TX and RX on a WBX board? > > Yeah, GRC works fine for full duplex and it is very easy to set it up. > > Best regards, > -Vijay > > --- On *Mon, 3/14/11, Marc Epard <mep...@me.com>* wrote: > > > From: Marc Epard <mep...@me.com> > Subject: Re: [Discuss-gnuradio] UHD USRP2 full duplex mystery solved > To: "Scott Johnston" <scott.johns...@ll.mit.edu> > Cc: "discuss-gnuradio Discussion Group" <discuss-gnuradio@gnu.org> > Date: Monday, March 14, 2011, 12:12 PM > > > On Mar 14, 2011, at 8:53 AM, Marcus D. Leech wrote: > > > On 14/03/2011 9:42 AM, Scott Johnston wrote: > >> Does anybody have an example of how to setup a full duplex app? > >> > >> I am using the uhd with the USRP n210. > >> > >> Marc Epard wrote: > >>> I've been attempting to do a full duplex send/recv using UHD on a USRP2 > with an XCVR2450. > > > > The XCVR2450 *hardware* doesn't support full-duplex at all, so no amount > of cleverness on the software side can change that. > > Although the XCVR2450 doesn't do full duplex, the WBX does, and current UHD > avoids the problem I described in my previous message. However, the WBX has > enough internal leakage between tx and rx that we gave up on > single-daughterboard full duplex. We now use a USRP2 with a WBX for tx and a > USRP N210 with a DBSRX2 for rx. > > As for examples, I'll try to clean up my C++ app and post it later this > week. GRC works fine full-duplex, too, I believe. > > -Marc > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org <http://mc/compose?to=Discuss-gnuradio@gnu.org> > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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