[Discuss-gnuradio] using 2 channels on 2 USRPs

[Toby Oliver]

Hi,

Has anyone used 2 USRPs to simultaneously receive 4 different
frequencies using DBSRX cards? I just wanted to check the correct way of
linking it all up. As I understand it the correct combination is:

fg=gr.flow_graph()
u0=usrp.source_c(0,decim,2,0,0)
u1=usrp.source_c(1,decim,2,0,0)
u0.set_mux(0x00003210)
u1.set_mux(0x00003210)
tune_result0=usrp.tune(u0,0,usrp.selected_subdev(u,(0,0)),freq0)
tune_result1=usrp.tune(u0,1,(1,0),freq1)
tune_result2=usrp.tune(u1,0,(0,0),freq2)
tune_result3=usrp.tune(u1,1,(1,0),freq3)
de_inter0 = gr.deinterleave(gr.sizeof_gr_complex)
de_inter1 = gr.deinterleave(gr.sizeof_gr_complex)
fg.connect(u0,de_inter0)
fg.connect((de_inter0,0), ...)
fg.connect((de_inter0,1), ...)
fg.connect(u1,de_inter1)
fg.connect((de_inter1,0), ...)
fg.connect((de_inter1,1), ...)

Is the mux correct for this? Or do I need to do something else to ensure
the correct DDC works on the correct channel?

Cheers,
Toby