2010/4/27 jlsdxw <jls...@126.com>: > Hi, > Recently I have been testing the examples of Gnu Radio. And I came across > some problems. When I use a USRP with two daughterboards, I found that the > two daughterboards can not trismit or receive at the same time. They can > only work as one transmitter and one receiver. I want to know whether we can > use both daughterboards as transmitters or receivers? What should I do > do achieve it? > Any reply will be appreciated!
If you start GRC you'll find a "USRP Dual Source" and a "USRP Dual Sink" and that will enable you to use both receivers and transmitters at the same time. I tried the attached example with WBX+RFX2400 cards and it works fine. If I replace one of the cards with LFRX and LFTX it will say: "Cannot compute dual mux when mixing quadrature and non-quadrature subdevices" so maybe that was your problem? Alex
dual_trx.grc
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